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If work done by electric field is positi...

If work done by electric field is positive, then the potential energy

A

Increases

B

Decreases

C

Remains contant

D

May increase or decrease

Text Solution

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Knowledge Check

  • When a 2 mu C charge is carried from point A to point B, the amount of work done by the electric field is 50 mu J . What is the potential difference and which point is at a higher potential ?

    A
    `25 V,B`
    B
    `25 V,A`
    C
    `20 V,B`
    D
    both are at same potential.

  • Assertion: A small electric dipole is moved translatonally from higher potential to lower potential in uniform electric field. Work done by electric is positive. Reason: When a positive charge is moved from higher potential to lower potential, work done by electric field positive.

    A
    If both Assertion and Reason are true but Reason is the correct explanation of Assertion.
    B
    If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
    C
    If Assertion is true, but the Reason is false.
    D
    If Assertion is false but the Reason is true.

  • STATEMENT-1 : If potential energy of a dipole in stable equilibrium position is zero, its potential energy is unstable equilibrium position will be 2pE, where p and E represent the dipole moment and electric field respectively and STATEMENT-2 : The potential energy of a dipole is minimum in stable equilibruim positioni and maximum in unstable equilibrium position.

    A
    Statement-1 is True, Statement-2 is True, Statement-2 is a correct explanation for Statement-1
    B
    Statement-1 is True, Statement-2 is True, Statement-2 is NOT a correct explanation for Statement-1
    C
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    D
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