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What is electric potential difference? What is the SI unit of potential difference ? Name the device used to measure the potential difference. 

Important Questions on Electricity

MEDIUM
Science>Physics>Electricity>Electric Potential and Potential Difference
What is the meaning of the statement “The potential difference between two points is 1 V” ? Name the device used to measure potential difference. What is resistance of a conductor? What is electric power? Write three formulae used to find electric power.
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Science>Physics>Electricity>Electric Potential and Potential Difference

Find the current in the three resistors as shown in the following figure?

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Science>Physics>Electricity>Electric Potential and Potential Difference
How much energy is given to each coulomb of charge passing through a 6 V battery?
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Science>Physics>Electricity>Electric Potential and Potential Difference
A science teacher asked a student to measure potential difference across the ends of a dry cell. The device needs to be used by the student is :
EASY
Science>Physics>Electricity>Electric Potential and Potential Difference
What is the S.l unit of potential difference?
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Science>Physics>Electricity>Electric Potential and Potential Difference
What do you understand by the term electric energy?
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Science>Physics>Electricity>Electric Potential and Potential Difference
A Volt is synonymous with
EASY
Science>Physics>Electricity>Electric Potential and Potential Difference
In an electric circuit, the voltmeter is used :
EASY
Science>Physics>Electricity>Electric Potential and Potential Difference
What is the S.l unit of potential difference?
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Science>Physics>Electricity>Electric Potential and Potential Difference

A voltmeter of very high resistance is joined in the circuit as shown in the figure. The voltage shown by the voltmeter will be______.

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HARD
Science>Physics>Electricity>Electric Potential and Potential Difference
The dimension of electrical potential difference is 
EASY
Science>Physics>Electricity>Electric Potential and Potential Difference
The potential gradient are across the material of low permittivity is ______ than the opposite that the material of large permittivity.
HARD
Science>Physics>Electricity>Electric Potential and Potential Difference
Name an instrument used for measuring electric potential difference by drawing diagram showing how this instrument is connected in an electric circuit. Why doesn't this instrument practically consume any electric energy from the electric circuit?
MEDIUM
Science>Physics>Electricity>Electric Potential and Potential Difference
Two large vertical and parallel metal plates, having a separation of 1 cm, are connected to a DC voltage source of potential difference X. A proton is released from rest midway between the two plates. It is found to move at 45° to the vertical just after release. Then X is nearly,
EASY
Science>Physics>Electricity>Electric Potential and Potential Difference
A potential difference is applied between a conducting sphere and a conducting plate (“plus” on the sphere and “minus” on the plate). The dimension of the plate is much larger than the distance between the sphere and the plate. A point positive charge is moved from point 1 to point 2 parallel to the plate. Using the above information choose the correct statement.

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MEDIUM
Science>Physics>Electricity>Electric Potential and Potential Difference
The emf of a cell is 6 V and internal resistance is 0.5 kΩ. The reading of a voltmeter having an internal resistance of 2.5 kΩ is
EASY
Science>Physics>Electricity>Electric Potential and Potential Difference
The electric field in a space E→=4i^-5k^ V m-1. What is the potential difference VB-VA between points A and B? The coordinates of A and B are 4, 0, 3 m and 10, 3, 0 m, respectively.
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Science>Physics>Electricity>Electric Potential and Potential Difference

In the electric field of a point charge q, a certain charge is carried from point A to B, C, D and E. Then the work done

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Science>Physics>Electricity>Electric Potential and Potential Difference
An electric charge 10–3μC  is placed at the origin 0, 0. Two points A and B are situated at 2¸2 and 2, 0 respectively. The potential difference between the points A and B will be
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Science>Physics>Electricity>Electric Potential and Potential Difference
The potential difference between two points is 100 V. If a particle with a charge of 2 C is transported from one of these points to the other, the magnitude of the work done is: