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Find the work done by some external forc...

Find the work done by some external force in moving a charge `q=4 muC` from infinity to a point, where electric potential is `10^(4)V`

A

`4 xx 10^(-2)J`

B

`2 xx 10^(-2)J`

C

`8 xx 10^(-2)J`

D

`1xx 10^(-2)J`

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • Find the work done by some external force in moving a charge q=2muC from infinity to a point where electric potential is 10^4 V.

    A
    `=4xx10^-2J`
    B
    `=2xx10^-2J`
    C
    `=2xx10^-3J`
    D
    `=2xx10^-4J`

  • The work require to displace charge q from infinity to given point is W, then electric potential at that point is

    A
    `W//q`
    B
    Wq
    C
    `q//W`
    D
    `q^(2)W`

  • What is the work done in moving a unit positive charge from infinity to that point in electric field called?

    A
    Electric potential
    B
    Potential difference
    C
    Electric current
    D
    Electric circuits

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