Electric potential

Q.

Calculate the amount of work done in shifting a charge of 2C from a point A to B having potential 10V and -5V respectively.

Q.

Calculate the work done to carry a charge of 3 C, if the potential difference between two points is 10 V.

Q.

What is meant by saying that the potential difference between two points in 1V.

Q. What is the potential difference between the terminals of a battery if 250 joules of work is required to transfer 20 coulombs of charge from one terminal of a battery to the other?

Q.

Two electrodes are maintained at a potential difference of 100V. How much kinetic energy would an electron gain, moving from cathode to anode ?

Q. Calculate the amount of work done in shifting a charge of 2 coulombs from a point A to B having potential 10 V and 5 V respectively.

Q.

Calculate the net work done between A and B if potential difference between the points is 50 volts and net charge moved is 50 coulomb.

Q. What is the difference between potential difference and potential difference across 2 points?

Q.

How is voltage drop equal to potential difference ?

Q. The work done by electric field in carrying a point charge of 5$\mu$C from a point A to point B is 10 mJ. The potential difference $V_A-V_B$ is the:

1. -2 kV
2. +2 kV
3. +2000V
4. -2000V

Q.

What is meant by potential difference??

Q. If $1J$ of work is done in bringing $1Coulomb$ of positive charge from infinity to a point in the electric field, then the potential of that point is:

1. $1Volt$
2. $1Coulomb$
3. $1Pascal$
4. $1Farad$

Q.

The device which measures the electric potential difference between two points is called as _____.

Q. The SI unit of electric potential is ..........

Q. In a circuit, 5C of charge is passed through a battery in 3 hours. The plates of the battery are maintained at the potential difference of 12 V. Then, the amount of work done by a battery is:

1. 60 J
2. 180 J
3. 20 J
4. 6.48 $\times$ 10${}^5$ J

Q. Two points $P$ and $Q$ are maintained at the potential of $10V$ and $-4V$ respectively. The work done in moving $100$ electrons from $P$ to $Q$ is:

1. $-19\times {10}^{-7}J$
2. $-2.24\times {10}^{-16}J$
3. $9.60\times {10}^{-17}J$
4. $2.24\times {10}^{-16}J$

Q. The potential difference between any two points is measured in :

1. volts
2. joules
3. coulombs
4. none of these

Q.

Find the value of r if I-1A and potential difference across PQ is 1V

1. 5Ω

2. 10Ω

3. 20Ω

4. 25Ω

Q. The work done in moving a charge of 5 coulombs from a point at 230 volts to another point at 240 volts is.

1. 15J
2. 50J
3. 500J
4. 100J

Q. What amount of work is done in moving a charge of 4 coulombs from a point 220 volts to a point at 230 volts?

Q. what is the difference between potential difference and electrical field ?

Q. How much work is done moving an electron from a potential of $2V$ to $5V$?

1. $2eV$
2. $3eV$
3. $5eV$
4. $10eV$

Q.

The work done in moving a unit positive charge between two points in an electric circuit is a measure of ___

Q. Calculate the amount of work done in moving a charged particle of charge $q$ through a potential difference of $V$.

1. $\frac{V}{q}$
2. $\frac{1}{qV}$
3. $\frac{q}{V}$
4. $qV$

Q. On moving a charge of 20 coulombs by 2 cm, 2 J of work is done, then the potential difference between the points is:

1. 0.1 V
2. 0.5 V
3. 2 V
4. 8 V

Q. Calculate the work done to move a charge $5$ C between two points A and B, if both the points are maintained at same potential of $6$ V

1. $6$J
2. Zero
3. $12$ J
4. $3$J

Q. What is the S.I. unit of electric potential?

Q. The amount of work done in moving 2.5 C charge over a potential difference 330 mV is:

1. 132 mJ
2. 415 mJ
3. 1650 mJ
4. 825 mJ

Q. Calculate the amount of work done in carrying a charge of $5mC$ against a potential difference of $100volt$.

1. $0.5J$
2. $50J$
3. $5J$
4. None

Q. State the S.I. unit of electric potential.