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On moving a charge of 20 coulomb by 2...

On moving a charge of ` 20 ` coulomb by ` 2 cm`, ` 2J` of work is done , the potential difference between the points is .

A

0.1 V

B

8V

C

2V

D

0.5V

Text Solution

Verified by Experts

The correct Answer is:
A
By definition of electrostatic potential energy
`DeltaU=q DeltaV`
`DeltaV=(DeltaU)/q=2/20=0.1 V`
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Knowledge Check

  • On moving a charge of 20 coulomb by 2cm, 2J of work is done, then the potential difference between the points is

    A
    (a) 0.1V
    B
    (b) 8V
    C
    (c) 2V
    D
    (d) 0.5V

  • The work done in moving a charge from one point to the other is 20J. If the potential difference between the points is 10V, the charge is:

    A
    4.0C
    B
    2.0C
    C
    0.5C
    D
    1.0C

  • If 4 xx 10^(20)eV energy is required to move a charge of 0.25 coulomb between two points. Then what will be the potential difference between them ?

    A
    `178 V`
    B
    `256 V`
    C
    `356 V`
    D
    None of these

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