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Which device converts light energy into electrical energy?
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Jan 4, 2018
by
anonymous
Which device converts light energy into electrical energy?
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answered
Jan 17, 2018
by
anonymous
Solar panel converts light energy to electrical energy. Photodiode converts light energy to electrical energy.
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answered
Jul 31, 2018
by
anonymous
Photovoltaic cell which are dides .
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asked
May 19, 2020
by
anonymous
Briefly explain how an electrical generator converts mechanical energy into electrical energy
Briefly explain how an electrical generator converts mechanical energy into electrical energy.
Last answer:
Working principle of DC generator: * Working principle of DC generator is the principle of dynamically induced emf or electromagnetic induction. * According to this principle, when flux is cut by a conductor, an ... , the flux is cut by the armature winding and an emf is dynamically induced in it.
electrical
mechanical
generator
energy
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Jan 4, 2018
by
anonymous
What converts electrical energy into heat energy?
What converts electrical energy into heat energy?
Last answer:
High resistance conductor which will dessipate heat energy in form of (I^2R)
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asked
Apr 9, 2018
by
anonymous
Which of the following device converts DC to AC?
Which of the following device converts DC to AC? A) Rectifier B) Boost converter C) Transformer D) Inverter
Last answer:
Reflector
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5
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asked
Apr 29, 2018
by
anonymous
Which of the following converts linear displacement from a mechanical reference into a proportional
Which of the following converts linear displacement from a mechanical reference into a proportional electrical signal containing phase and amplitude information? A) CRO B) LVDT C) RVDT D) None of these
Last answer:
Which of the following converts linear displacement from a mechanical reference into a proportional electrical signal containing phase and amplitude information? A) CRO B) LVDT C) RVDT D) None of these
linear
displacement
mechanical
reference
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asked
Aug 11, 2017
by
anonymous
which device converts sound to electricity ?
which device converts sound to electricity ?
Last answer:
Microphone converts sound to electricity.
sound
electricity
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asked
Aug 25, 2019
by
anonymous
why reactive ohm cannot converted electrical energy into heat?
why reactive ohm cannot converted electrical energy into heat?
Last answer:
Because it describes the resistance of element that store energy rather than dissipate energy as heat
reactive
ohm
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asked
May 8, 2018
by
anonymous
In fuel cell the __________ energy is converted into electrical energy.
In fuel cell the __________ energy is converted into electrical energy. (A) Mechanical (B) Chemical (C) Heat (D) Sound
Last answer:
In fuel cell the Chemical energy is converted into electrical energy.
fuel
cell
electrical
energy
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asked
Jun 18, 2018
by
anonymous
Which of the following circuits converts any arbitrary waveform into square waveform?
Which of the following circuits converts any arbitrary waveform into square waveform? A) Hartley oscillator B) Schmitt trigger C) Differentiator D) RC phase shift oscillator
Last answer:
Which of the following circuits converts any arbitrary waveform into square waveform? A) Hartley oscillator B) Schmitt trigger C) Differentiator D) RC phase shift oscillator
circuits
converts
arbitrary
waveform
square
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asked
May 8, 2018
by
anonymous
Step-down transformer converts high voltage and low current into:
Step-down transformer converts high voltage and low current into: (A) How voltage and high current (B) High voltage and low current (C) Low voltage and high current (D) None of the above
Last answer:
Step-down transformer converts high voltage and low current into: Low voltage and high current
step-down
transformer
converts
high
voltage
low
current
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asked
May 13, 2018
by
anonymous
A computer program that converts one by one instruction into a machine language is called ____.
A computer program that converts one by one instruction into a machine language is called ____. a) Interpreter b) Simulator c) Compiler d) None of the above
Last answer:
A computer program that converts one by one instruction into a machine language is called Interpreter.
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asked
May 13, 2018
by
anonymous
A computer program that converts an entire program into a machine language is called ____.
A computer program that converts an entire program into a machine language is called ____. a) Interpreter b) Simulator c) Compiler d) None of the above
Last answer:
A computer program that converts an entire program into a machine language is called Compiler.
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asked
Mar 27, 2018
by
anonymous
____directly converts temperature into voltage.
____directly converts temperature into voltage.
Last answer:
Thermocouple directly converts temperature into voltage.
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asked
4 days
ago
by
anonymous
Which of the following exhibits unidirectional flow in an ecosystem ? (1) Light (2) Energy (3) Water (4) Biomass
Which of the following exhibits unidirectional flow in an ecosystem ? (1) Light (2) Energy (3) Water (4) Biomass
Last answer:
Energy
physical-geography
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asked
Jun 18, 2018
by
anonymous
Which of the following device is used for coupling microwave energy?
Which of the following device is used for coupling microwave energy? A) Resonator B) Waveguide C) Loop D) Antenna
Last answer:
Which of the following device is used for coupling microwave energy? A) Resonator B) Waveguide C) Loop D) Antenna
device
used
coupling
microwave
energy
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asked
Aug 2, 2020
by
anonymous
A hollow circular pipe with non-reflective inner surface is cut into 5 pieces and arranged as shown in the figure below. If it is illuminated from below using a torch as shown in the figure, what would be the profile of the light falling on the sheet kept above?
Last answer:
A
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asked
Mar 25, 2018
by
anonymous
When an alternating current passes through an ohmic resistance the electrical power converted into heat is?
When an alternating current passes through an ohmic resistance the electrical power converted into heat is?
Last answer:
When an alternating current passes through an ohmic resistance the electrical power converted into heat is true power.
alternating
current
ohmic
resistance
electrical
power
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asked
Sep 22, 2018
by
anonymous
Describe the following energy conservation methods of lighting system. i) By replacing lamp sources ii) Using light control gears.
Describe the following energy conservation methods of lighting system. i) By replacing lamp sources ii) Using light control gears.
Last answer:
Energy conservation methods of lighting system: i) By replacing lamp sources: Installation of energy efficient fluorescent lamps in place of Conventional fluorescent lamps. Installation of ... (HF) electronic ballasts in place of conventional ballasts which saves energy up to 35%.
energy
conservation
methods
lighting
system
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asked
May 13, 2018
by
anonymous
Light load adjustments for induction type energy meters are usually done at
Light load adjustments for induction type energy meters are usually done at (a) 10% of full load current (b) 5% of full load current (c) 50% of full load current (d) 1% of full load current
Last answer:
Light load adjustments for induction type energy meters are usually done at 5% of full load current
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asked
May 25, 2020
by
anonymous
Why in electric motor or generator heating due to current involves dissipation of electrical energy?
Why in electric motor or generator heating due to current involves dissipation of electrical energy?
Last answer:
In electric motor or generator heating due to current involves dissipation of electrical energy because as the current increases there will be I2R losses. More current flow means more the heat will be generated and as the temperature of conductor increase its resistance increases.
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asked
Jan 23, 2020
by
anonymous
all energy conservation techniques for electrical motors and transformer
allenergy conservation techniques of electrical motor and transformer
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May 21, 2019
by
anonymous
Problems on electrical power and energy
Problems on electrical power and energy
Last answer:
Problem on electrical power and energy 1 : https://youtu.be/ZvWHuMdmv9g Problem on electrical power and energy 2 : https://youtu.be/19IZMc6U2vs Problem on electrical power and energy 3 : https ... : https://youtu.be/iYqGIwA919A Problem on electrical power and energy : https://youtu.be/iWnWQz_mzHk
problems
on
electrical
power
and
energy
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asked
May 16, 2019
by
anonymous
Problem on electrical power and energy 2
Problem on electrical power and energy 2
Last answer:
Problem on electrical power and energy 2
problem
on
electrical
power
and
energy
2
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asked
May 16, 2019
by
anonymous
Problem on electrical power and energy 1
Problem on electrical power and energy 1
Last answer:
Problem on electrical power and energy 1
problem
on
electrical
power
and
energy
1
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asked
May 16, 2019
by
anonymous
Problem on electrical power and energy 7
Problem on electrical power and energy 7
Last answer:
Problem on electrical power and energy 7
problem
on
electrical
power
and
energy
7
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asked
May 16, 2019
by
anonymous
Problem on electrical power and energy 6
Problem on electrical power and energy 6
Last answer:
Problem on electrical power and energy 6
problem
on
electrical
power
and
energy
6
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asked
May 16, 2019
by
anonymous
Problem on electrical power and energy 5
Problem on electrical power and energy 5
Last answer:
Problem on electrical power and energy 5
problem
on
electrical
power
and
energy
5
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asked
Mar 31, 2018
by
anonymous
One kilowatt hour of electrical energy is the same as
Last answer:
One kilowatt hour of electrical energy is the same as 36 x 105 joules.
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asked
6 days
ago
by
anonymous
The temperature of water at the bottom of a large waterfall is higher than that of the water at the top. because (1) the falling water absorbs heat from the Sun. (2) the water at the bottom has greater potential energy. (3) the kinetic energy of the falling water is converted into heat. (4) rocks on the bed of the river give out heat.
The temperature of water at the bottom of a large waterfall is higher than that of the water at the top. because (1) the falling water absorbs heat from the Sun. (2) the water at the bottom has greater potential energy. (3) the kinetic energy of the falling water is converted into heat. (4) rocks on the bed of the river give out heat.
Last answer:
the kinetic energy of the falling water is converted into heat.
physical-geography
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asked
Sep 29, 2018
by
anonymous
Discuss how power factor tariff results into energy conservation.
Discuss how power factor tariff results into energy conservation.
Last answer:
Power factor tariff results into energy conservation: i) Applying incentives and penalties according to power factor is an effective way, which enables consumer to improve power factor so that he can ... finally leads to reduction in the current drawn by the load and helps for energy conservation.
power
factor
tariff
energy
conservation
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asked
Apr 12, 2018
by
anonymous
In emergency light which one is not used?
In emergency light which one is not used? A. AC power supply B. Battery C. Megger D. Transformer
Last answer:
In emergency light Megger is not used.
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asked
Apr 11, 2018
by
anonymous
Light duty cranes are used in which of the following?
Light duty cranes are used in which of the following? (1) Power houses (2) Pumping stations (3) Automobile workshops (4) All of the above
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asked
Apr 9, 2018
by
anonymous
Which of the following is a low efficient light source?
Which of the following is a low efficient light source? A) CFL B) HPSV Lamp C) LPMV Lamp D) Tungsten Lamp
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asked
Apr 29, 2018
by
anonymous
Buchholz relay is used as a safety device with respect to which of the following?
Buchholz relay is used as a safety device with respect to which of the following? A) Audio transformers B) Oil filled power transformers C) Air core transformer D) None of these
Last answer:
Buchholz relay is used as a safety device with respect to which of the following? A) Audio transformers B) Oil filled power transformers C) Air core transformer D) None of these
buchholz
relay
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asked
Apr 11, 2018
by
anonymous
Which of the following is not an electromagnetic device?
Which of the following is not an electromagnetic device? a) Hall transducer b) Transformer c) Speedometer d) Eddy current damping device
Last answer:
Which of the following is not an electromagnetic device? Hall transducer
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asked
Apr 9, 2018
by
anonymous
Which of the following is not a protective device?
Which of the following is not a protective device? A) MCB B) FUSE C) ELCB D) None of the Above
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asked
Apr 9, 2018
by
anonymous
Transducer is a device which...
Transducer is a device which (a) converts one form of power in to the other (b) is similar to transformer (c) converts one form of energy in to other (d) helps in measuring electricity
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asked
Apr 5, 2018
by
anonymous
FET belongs to which of the following type of device?
FET belongs to which of the following type of device? (A) Current controlled device (B) Magnetic device (C) Power controlled device (D) Voltage controlled device
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asked
Apr 5, 2018
by
anonymous
For measuring the frequency of an unknown A.C. source. Which of the following device is necessary to obtain...
For measuring the frequency of an unknown A.C. source. Which of the following device is necessary to obtain a standard waveform? (A) Operational amplifier (B) Astable multivibrator (C) Schmitt trigger (D) Monostable multivibrator
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asked
May 24, 2020
by
anonymous
Define electrical energy. State its unit.
Define electrical energy. State its unit.
Last answer:
Electrical Energy: Electrical energy is defined as the work done in moving electrical charge in electrical field. OR The total power delivered or consumed by electrical load over specific unit time ... unit of electrical energy is the joule (or watt-second) OR Kilowatt-hour ( kWH ).
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asked
Oct 1, 2018
by
anonymous
Explain the following Energy conservation methods of electrical motor : (a) Rewinding of motors (b) Operating in star mode
Explain the following Energy conservation methods of electrical motor : (a) Rewinding of motors (b) Operating in star mode
Last answer:
Energy conservation methods of an electric motor: (a) Rewinding of motors: i) During rewinding by preserving the original winding characteristics (material quality, design and structure). It is ... in the lines also reduces leading to lower copper losses in motor and decrease line losses.
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asked
Sep 22, 2018
by
anonymous
State the need of energy conservation in electrical motor.
State the need of energy conservation in electrical motor.
Last answer:
Need of energy conservation in Electrical motors: 1. Induction motors are used as electrical drives in industrial, commercial and residential sectors. 2. Considering all industrial applications, 70% of ... system. 8. To adopt advanced technology in design and to use better quality materials.
energy
conservation
electrical
motor
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2
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asked
Sep 22, 2018
by
anonymous
Describe the following energy conservation methods of electrical motor. i) By motor survey ii) By matching loads with motor rating
Describe the following energy conservation methods of electrical motor. i) By motor survey ii) By matching loads with motor rating
Last answer:
Energy conservation methods of electrical motor: 1) By Motor Survey: Large industries have a massive population of LT motors. Load survey of LT motors can be taken-up methodically to ... -speed motors, eddy-current couplings, fluid couplings, and solid-state electronic variable speed drives.
energy
conservation
methods
electrical
motor
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asked
Apr 29, 2018
by
anonymous
In order to have a lower cost of electrical energy generation the load factor
In order to have a lower cost of electrical energy generation the load factor (1) and the diversity factor should be low (2) should be low but the diversity factor should be high (3) should be high but the diversity factor should be low (4) and the diversity factor both should be high
Last answer:
In order to have a lower cost of electrical energy generation the load factor and the diversity factor both should be high
lower
cost
electrical
energy
generation
load
factor
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asked
Mar 10, 2018
by
anonymous
Why is it cheaper to transmit electrical energy at high voltage?
Why is it cheaper to transmit electrical energy at high voltage?
Last answer:
Because of the electrical energy was step upped by transformers the transformer have high efficiency than the electric energy is cheaper
cheaper
transmit
electrical
energy
high
voltage
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asked
Jun 4, 2018
by
anonymous
The property of materials by which they can be drawn into wires is known as:
The property of materials by which they can be drawn into wires is known as: A) malleability B) elasticity C) creep D) ductility
Last answer:
The property of materials by which they can be drawn into wires is known as: ductility
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asked
Apr 10, 2018
by
anonymous
An inverse transducer converts
An inverse transducer converts (a) electrical energy to any other form of energy (b) electrical energy to light energy (c) mechanical displacement into electrical signal (d) electrical energy to mechanical form
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asked
40 minutes
ago
by
anonymous
Which of the following statements is true when we see ‘rainbow’ ? (1) We face sun and raindrops (2) The Sun remains behind us and we face raindrops (3) In light rainfall, we face Sun (4) The sky remains clear and the sun is at lower position in the sky
Which of the following statements is true when we see ‘rainbow’ ? (1) We face sun and raindrops (2) The Sun remains behind us and we face raindrops (3) In light rainfall, we face Sun (4) The sky remains clear and the sun is at lower position in the sky
Last answer:
The Sun remains behind us and we face raindrops
physics
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Jan 9
by
anonymous
A cartoon contains 15 torch lights out of which 3 are defective. Two torch light are chosen at random from this cartoon. The probability that at least one of these is defective is. A) 13/35 B) 14/35 C) 11/35 D) 17/35
A cartoon contains 15 torch lights out of which 3 are defective. Two torch light are chosen at random from this cartoon. The probability that at least one of these is defective is. A) 13/35 B) 14/35 C) 11/35 D) 17/35
Last answer:
Answer: A) P (none is defective) = 12c2/15c2 = (12*11/2*1)/(15*14/2*1) = 66/105=22/35 P (at least one is defective) = (1 – 22/35) =13/35
probability
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asked
Aug 2, 2020
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anonymous
In a camera, the opening through which light enters the camera is called aperture. The distance between the closest and the farthest part of a view captured on a photograph, which is in focus, is called depth of field. Given that all other settings remain the same, which of the following is TRUE?
In a camera, the opening through which light enters the camera is called aperture. The distance between the closest and the farthest part of a view captured on a photograph, which is in focus, is called depth of field. Given that all other settings remain the same, which of the following is TRUE? A. The larger the ... the aperture, the larger the depth of field C. The depth of field is not affected by the aperture size D. Larger the aperture, the larger the image captured
Last answer:
A D
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Aug 1, 2020
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anonymous
Top and side views of a photographer’s setup for a product shoot are shown in the figure. P is the primary light source, S is the secondary light source, R is the reflector and Q is the camera position. If the Primary Light Source is at 100% intensity, and the secondary light is at 25% intensity, which one of the given options is the photograph taken using this setup?
Last answer:
D
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