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How do you fix voltage drop?

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Description : State the concept of internal voltage drop.

Answer : Concept of internal voltage drop: Every practical source offers some opposition to the current due to its internal parts or components. e.g. a 12V battery has electrodes made up of conducting ... internal voltage drop, the terminal voltage of practical voltage source is always less than its emf. 

Description : What is internal voltage drop and terminal voltage?

Answer : It is not permissible to just connect the positive terminal to the negative terminal of a cell with a copper wire. It will overheat and get damaged. This happens because the electromotive force (emf) ... than the nominal voltage (emf) of the cell and this lower voltage is called terminal voltage.

Description : To determine the polarity of the voltage drop across a resistor, it is necessary to know?

Answer : To determine the polarity of the voltage drop across a resistor, it is necessary to know direction of current through the resistor.

Answer : In order that current should flow without causing excessive heating or voltage drop, the relay contacts should have low contact resistance, be clean and smooth, be of sufficient size and proper shape.

Description : In alternator where the voltage drop occurs?

Answer : In alternator voltage drop occurs in armature resistance, leakage reactance, and armature reactance.

Description : How do you know the voltage of an LED?

Answer : After connecting led to a DC source we can measure the voltage of led by connecting a voltmeter across it.  But voltage rating of the led is given by the manufacturers. Or we can ... in the market For more doubts connect with me in linkdin [email protected] 

Description : In voltage source converter based HVDC transmission system the active power is controlled by changing (A) phase angle of the converter ac input voltage (B) supply frequency of the converter ac input voltage (C) magnitude of the converter ac input voltage (D) DC voltage at the inverter terminals

Answer : In voltage source converter based HVDC transmission system the active power is controlled by changing phase angle of the converter ac input voltage

Description : What is meant by flash over voltage?

Description : Why high voltage test is done?

Description : What is dielectric withstand voltage?

Description : Why high voltage can reduce power loss?

Answer : when voltage has increased due to reduced current flow, thus power loss given by ( I^2R) will be low due to reduced current(I^2) provided that resistance (R) is constant.

Description : Why does increase in current mean a decrease in voltage?

Answer : This is because current flows from high potential to low potential to bring the two diffrent potential to unity , thus  a reduced potential (voltage)

Description : What is the definition of extra low voltage?

Answer : Extra-low voltage (ELV) is an electricity supply voltage in a range which carries a low risk of dangerous electrical shock.

Description : What is the difference between line and phase voltage?

Answer : Line voltage  is  voltage  between two  phases R &Y  (415 v)  while  phase  voltage  is  the  voltage  between  one  phase and  a neutral  B &  N   (240 v).

Description : What is impulse voltage of transformer?

Description : What is Extra High Voltage?

Description : Why high voltage is used in power transmission?

Answer : The primary reason that power is transmitted at high voltages is to increase efficiency. ... The lower current that accompanies high voltage transmissionreduces resistance in the conductors aselectricity flows ... This means that thin, light-weight wires can beused in long-distance transmission.

Description : What is the difference between a line voltage and low voltage control system?

Description : What are the advantages of high voltage transmission?

Answer : Advantages:  1. As Transmission voltage increases, current decreases. 2. As current decreases, cross section of conductor decreases. 3. As cross section of conductor decreases ... line increases  12. As transmission voltage increases power handling capacity of transmission line increases 

Description : What is a high voltage test?

Description : What is considered low voltage and high voltage?

Description : How to buy a voltage stabilizer correctly?

Answer : How to buy a voltage stabilizer correctly? By the type of networks, stabilizers can be divided into single-phase, designed for a voltage of 220V and three-phase, which are designed for 380V. ... , they must be easy to operate, have a convenient appearance, and not create noise during operation.

Description : Explain how sinusoidal AC voltage is generated by using simple one loop generator.

Answer : An electric current produced by means of electrical machine is known as generator which converts mechanical energy into electrical energy. When conductor cuts the magnetic flux, emf induced in it. (Faraday' ... upon position of armature. The nature of emf is alternating as shown by the waveform. 

Description : How do you calculate power loss?

Description : How can you fix dependent clauses?

Answer : There are two ways to fix a dependent clause. You can remove the subordinating conjunction (although, because, if, when). Often just removing that word will reveal an independent clause. Another option ... . If the dependent clause appears after the dependent clause, no comma is needed.  

Description : List standard voltage level used in India. 

Answer : Standard voltage level used in India: * Generation Voltage : 3.3KV, 6.6KV,11KV and 17.5 KV,21KV (Now a days generation voltage is in the range of 11KV- 33KV) * Primary Transmission voltage :- 220 ... voltages in India are 765 KV (750KV), 400KV, 220KV, 132KV, 110KV, 66KV, 33KV, 22KV, 11KV.

Description : State the advantages of use of high voltage in transmission of Electric power. 

Answer : Advantages: 1. As Transmission voltage increases, current decreases. 2. As current decreases, cross section of conductor decreases. 3. As cross section of conductor decreases, its ... high voltage transmission line, successful interconnection of transmission line is possible than low voltage. 

Description : Analyze the effect of supply voltage on performance of LED as regards current, Lumen output, efficacy and life. 

Answer : 1) Effect on Current:- In LED current depends upon supply voltage, if voltage get changes then current also change but this change in current will be control by resistors which are connected in series.  2) ...   4) Effect on Life:- If supply voltage is not stable then life of LED get reduced. 

Description : With the help of N-channel JFET describe the effect of input voltage VGS on output current ID.

Answer : Working of N channel FET: * When a voltage is applied between the drain and source with a DC supply (VDD), the electrons flows from source to drain through narrow channel ... where the channel gets completely blocked and the drain current becomes zero is called pinch- off voltage. 

Description : Define: i) Input Offset Voltage ii) Input offset Current iii) Input Bias Current iv) Output offset voltage

Answer : Definition of parameters of OPAMP is follows:  i) Input Offset Voltage: Input offset voltage is defined as the voltage that must be applied between the two input terminals of an OPAMP to null or ... to ground) and output voltage is obtained non zero such voltage is output offset voltage of opamp.

Description : Nodal Analysis with Voltage Sources dependent voltage source and two supernode

Answer : Nodal Analysis with Voltage Sources dependent voltage source and two supernode

Description : Nodal analysis example with voltage source and supernode

Answer : Nodal analysis example with voltage source and supernode

Description : Explain the need and steps to conduct the reduced voltage running up test on the three phase induction motor.

Description : Nodal Analysis with Voltage Sources

Answer : Nodal Analysis with Voltage Sources

Description : Voltage Division

Answer : Voltage Division

Description : Voltage

Answer : Voltage

Description : A linear network has a current input 4cos(ω t + 20º)A and a voltage output 10 cos(ωt +110º) V. Determine the associated impedance.

Answer : Solution

Description : Sinusoids find amplitude, period, frequency, voltage (Problem 1)

Answer : Sinusoids find amplitude, period, frequency, voltage (Problem 1)

Description : Find power delivered by voltage source

Answer : Find power delivered by voltage source

Description : Source transformation Replace the circuit with voltage source in series with a single resistor

Answer : Source transformation Replace the circuit with voltage source in series with a single resistor

Description : Source transformation voltage source to current source and vice versa

Description : What is terminal voltage ?

Description : Limitation and application of High Voltage DC (HVDC)

Answer : Limitation and application of High Voltage DC (HVDC) :  Limitation:- 1) It is difficult to step up and step down DC voltage like AC voltage. 2) Special cooling ... conventional/non-conventional) 12) Increasing existing grid utilization. 13) Interconnection of different grids or networks

Description : State standard voltage in India for the following : (i) Generation Voltage (ii) Primary Transmission Voltage

Answer : i. Generation Voltage : 3.3KV, 6.6KV,11KV and 17.5 KV  ii. Primary Transmission voltage :- 220 KV, 400KV, 765 KV (750 KV) 

Description : What kills, current or voltage?

Answer : Current would kill. You can actually have thousands of bolts going through you and not even know it. Yes you probably know already voltage is current times resistance. Since your body is a resistor it would take just a small amount of current to create a very high voltage

Description : Define: i) Knee voltage ii) Reverse saturation current 

Answer : i) Knee voltage : The applied forward voltage, at which the PN junction starts conducting and current starts increasing exponentially is called knee voltage. It is 0.7V for Si and 0. ... semiconductor diode caused by diffusion of minority carriers from the neutral regions to the depletion region.

Description : If 1-phase voltage is 220V, why is 3-phase 440V and not 660V ?

Answer : Phase voltage =220v /( phase to neutral) Line voltage = 380 v ( phase to phase) Phase angle difference 120° So when two phases reach vmax +ve I.e. (+220v) + (+220v) = 440v that time due ... these event happen very fast. Hence we have 440 v only in three phase motor. √3.phase voltage= 380 v.

Description : Is the power line voltage available in our homes a dc or an ac voltage?

Answer : The power line voltage available in our homes is AC. Mobile dwellings are the most commonly DC-supplied homes and even then they tend to include AC supply for heavier loads.

Description : Voltage ratio

Answer : Voltage ratio

Description : Voltage divider rule

Answer : Voltage divider rule

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