Home
Class 12
PHYSICS
Work done (by the external force) per un...

Work done (by the external force) per unit positive test charge in bringing it from infinity to the point is negative, for

A

`Qlt0,Vgt0

B

`Qgt0,Vgt0`

C

`Qlt0,Vgt0`

D

`Qlt0,Vlt0`

Text Solution

Verified by Experts

The correct Answer is:
D
Doubtnut Promotions Banner Mobile Dark
|

Similar Questions

Explore conceptually related problems

Find the work done by external force in bring two charges of + 10 C each from infinity to a separation of 2 meters.

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.

Knowledge Check

  • The work done by the external forces on a system equals the change in

    A
    total energy
    B
    kinetic energy
    C
    potential energy
    D
    none of these

  • A : Work done by the gravitational force is positive when the two point masses are brought from infinity to any two points in space . R : Gravitational potential energy increases during the above process .

    A
    If both Assertion & Reason are true . And the reason is the correct explanation of the assertion , then mark (1)
    B
    If both Assertion & Reason are true but the reason is not the correct explanation of the assertion , then mark (2)
    C
    If Assertion is true statement but Reason is false , then mark (3)
    D
    If both Assertion and Reason are false statement , then mark (4)

  • A charge Q is placed at the origin. The electric potential due to this charge at a given point in space is v . The work done by an external force in bringing another charge q from infinity up to the point is

    A
    `(V)/(q)`
    B
    `Vq`
    C
    `V+q`
    D
    `V`

    • Similar Questions

    Explore conceptually related problems

    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

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

    When work is done on a body by an external force, its

    When work is done on a body by an external force, its

    When the positively charged hanging pendulum bob is made fixed, the work done in slowly shifting a unit positive charge from infinity to P is V. If the pendulum is free to move, the corresponding work done id V' . Then.

    Home
    Profile