What is a digital power meter?

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Description : Principal of digital frequency meter.

Answer : The basic block diagram of basic digital frequency meter (DFM) is shown in above figure. The signal whose frequency we have to be measured is first to be amplified through amplifier. The output of amplifier ... = Number of counts. t = Time interval between start and stop condition of the gate.

Description : Write any two advantages of digital energy meter.

Answer : Advantages of Digital Energy Meter: 1) Easy to read. 2) High accuracy 3) High resolution. 4) No frictional losses as there are no moving parts. 5) No requirement for external adjustments. 6) Large ... due to absence of moving parts. 7) Highly efficient. 8) Very much compact. 9) Good reliability.

Description : What is an RF Power Meter?

Description : What is power quality meter?

Description : What is the power factor when a single phase watt meter operating on 200 V and 5 A for 5 hours makes 2016 revolutions and the meter constant in revolution is 420? A) 0.04 B) 1.04 C) 0.96 D) None of these

Answer : What is the power factor when a single phase watt meter operating on 200 V and 5 A for 5 hours makes 2016 revolutions and the meter constant in revolution is 420? A) 0.04 B) 1.04 C) 0.96 D) None of these

Description : Explain the “mitigation of power theft” and “faulty meter replacement” for energy conservation techniques to reduce commercial losses. 

Answer : Energy conservation techniques to reduce commercial losses:  1. Mitigation of Power Theft: Power theft being the most important issue which all of the service providing utilities ... agricultural sector. Prepaid meters may prove effective measures against unauthorized abstraction of energy. 

Description : With a neat sketch explain working of 1 phase dynamometer type power factor meter.

Answer : Working of 1 phase dynamometer type power factor meter : The current coil is connected in series with load. Two pressure coils marked as A and B are connected across the supply terminals ... becomes stationary and the pointer shows steady deflection corresponding to the power factor of the load. 

Answer : In a dynamometer 3-phase power factor meter, the planes of the two moving coils are at 120°.

Answer : In a single phase power factor meter the phase difference between the currents in the two pressure coils is exactly 90°.

Answer : The two pressure coils of a single phase power factor meter have the same dimensions and the same number of turns.

Answer : A power factor meter has one current circuit and two pressure circuits.

Description : What does an electric meter measure?

Description : How do you read a KWH Meter?

Description : What is digital storage oscilloscope (DSO)?

Answer : Digital storage oscilloscope have many advantages as compared to analogue oscilloscope. Digital storage oscilloscope uses analogue to digital converter and digital to analogue converter and also it ... oscilloscope is used for comparing waveforms and recording and it have many different uses.

Description : What is digital circuit design?

Description : What is the use of digital signal processing?

Description : What are the advantages of a digital signal?

Answer : It  has   only   two  variable   input  and  output (low   or    high)   (0  or    5).

Description : What are digital signals used for?

Description : What is the difference between analog and digital electronics?

Description : What is digital and analog electronics?

Description : what are the advantages of digital multimeter ?

Answer : Precise reading digital reading easy to use less losses due to no mechanical parts high efficiency small size compact can measure AC and DC voltage and current and resistance and can be use for continuity testing

Description : What is Analog to Digital Converter (ADC) ?

Answer : Analog to Digital Converter (ADC)  Analog quantity may be voltage, temperature, sound, speed, audio etc. it is information or signal. ... digital form), digital speedometer (converts analog speed into digital form) etc.

Description : working of Digital camcoder.

Answer : Explanation: Figure shows the functional block diagram of a digital camcorder system. Light from the optical lens assembly projects an image onto the charged coupled device (CCD) imager ... data from the recording medium are demultiplexed and decompressed and fed into the EVF for display.

Description : Compare analog and digital instruments .

Answer : Parameter Analog Instrument Digital Instrument  1 Principle The instrument that displays analog signals is called as on analog instrument.  The instrument that displays ... , etc. Logical analyzer, signature analyzer, computers, microprocessor based instruments, etc. 

Description : Compare analog CRO with digital storage oscilloscope (DSO).

Answer : Analog CRO DSO 1 High bandwidth Less bandwidth due to aliasing effect 2 High  writing speed about 15 GHz Limited speed 3 No memory Has memory ... Less storage time. The digital oscilloscope is  capable of an infinite storage time, using its digital memory.

Description : Advantages of digital instruments

Answer : 1. They are having high input impedance, so there is no loading effect 2. They are having higher accuracy 3. An unambiguous reading is obtained 4. The output can be interfaced with external equipment 5. They are available in smaller size . 

Description : Write example of each type (i) Primary transducer (ii) Active transducer (iii) Electrical transducer (iv) Digital transducer

Answer : (i) Active transducer:-Thermocouple, piezoelectric, photovoltaic cell (ii) Primary transducer:- Bourdon tube, bellows, (iii) Electrical transducer.:- LVDT,RVDT, Hall effect, strain gauge, ... , optical pyrometer, radiation pyrometer (iv) Digital transducer:- Linear Encoder, digital taco generator

Description : Blackt Electrotech 230V 24x7 Energy Saving Socket Type Digital Programmable Plastic Electronic Timer (White)

Answer : Buy from amazon: Buy:

Description : Describe block diagram of digital comparator and write truth table of 2 bit comparator.

Answer : Digital comparator is a combinational circuit which compares two numbers, A and B; and evaluates their relative magnitudes. The outcome of the comparison is given by three binary variables which indicate whether A ... Depending on the result of comparison one of these outputs will go high.

Description : State two advantages of digital system over analog system.

Answer : 1. They are less susceptible to noise. 2. The effect of fluctuation in the characteristic of the components, ageing of components etc. is very small in digital circuits. 3. Digital circuits have capability of memory which makes them suitable for computers. 4. More accurate.

Description : The first digital electronic computer was built in the year________  A. 1950 B. 1960 C. 1940 D. 1930

Answer : The first digital electronic computer was built in the year 1940 

Description : Compare analog & digital multimeter.

Answer : Analog multi-meter DMM Power supply is not required  Power supply is required  Less suffered from electric noise  More suffered from electric Noise Less isolation problems. More ... visual indication Visual indication is not that much better. Less cost More cost

Description : State two advantages of digital circuits.

Answer : Advantages of Digital Circuits: i) Digital circuits are easier to design. ii) Information storage is easy. iii) Accuracy and precision are greater. iv) Less affected by noise. v) Reliability is more

Description : State the applications of digital electronics.

Answer : 1. The processor, graphics controller are built on principles of digital electronics. 2. In Computers, tablet, displays, LCD/LED TV. 3. mobile/smart phone, , computer ,keyboard, mouse 4. speed/ ... bike/car, various control of the car, 5. ATM machines, credit /debit cards 6. Telephone exchange

Description :  Can we create a digital circuit that has as inputs the  3- bit digital words [2: 0] A, [2: 0] B and [2: 0] C and its output is  equal to      |C-A-B| . The circuit of the binary full adder is known.

Description : The operation of a ramp type Digital Voltmeter is based on the principle of (A) Voltage-to-current conversion. (B) Voltage-to-time conversion. (C) Current-to-time conversion. (D) Current-to-frequency conversion.

Answer : The operation of a ramp type Digital Voltmeter is based on the principle of Voltage-to-time conversion.

Description : Can you convert analog signal to digital?

Description : Why digital signal processing is important?

Description : Asymmetric Digital Subscriber Line (ADSL)

Answer : Asymmetric Digital Subscriber Line (ADSL) DSL stands for Digital Subscriber Line it use for high band width information at home or business place via copper telephone lines. There are different ... data rate at beginning and lowering the data rate at the time of error.

Description : Digital to Analog Converter (DAC)

Answer : Digital to Analog Converter (DAC) Digital means binary (1 0) and 1 and 0 may be true and false or on and off or high and low. Analog means continuous signal or information ... wave. Phase Shift Keying (PSK) is transmit digital data by changing the phase of carrier wave.

Description : Digital Multimeter (DMM)

Answer : Digital Multimeter (DMM) Digital multimeter is the combination of Voltmeter (for measuring voltage) Ammeter (for measuring current) and Ohmmeter (for measuring resistance ... ;in the range of mega ohms.VISIT AT YOUTUBEBUY BOOKS AT EEE STORE

Description : What is meant by energy meter constant?

Answer : Energy Meter Constant  A fixed value which is used when converting meter readings to actual energy use, especially when potential transformers and similar types of equipment are used in metering. For example, K=--------rev/Kwh

Description : What type of meter is used to measure current?

Answer : Ammeter

Answer : Nanometer is a ametric measure of distance equivalent to one billionth of a meter.

Description : What is the use of power factor correction?

Description : What is the best power factor?

Answer : It is unity power factor but difficult to achieve in dynamic loads

Description : What is power factor angle?

Description : What causes random power outages?

Description : What is the advantage of high power factor?

Answer : Reduced copper losses Smaller conductor size Improve voltage regulation Increase system capability Less energy bill

Description : What is power logger?

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