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Physics · JEE | Electrostatic Potential and Capacitance

हिन्दी

The work done by an electrostatic field in moving a charge from one point to another depends only on:

  1. A
    The initial and final positions only
  2. B
    The path taken between the points
  3. C
    The average velocity of the charge
  4. D
    The total length of the trajectory
View Answer & Solution

Correct answer · Option A

The initial and final positions only

Explanation

Electrostatic force is conservative, meaning work done by an electrostatic field depends solely on the initial and final positions and is independent of the path taken.

Related questions

At a large distance \( r \), the electric potential \( V \) due to an electric dipole varies as:→The magnitude of the electric field \( |E| \) in terms of potential change \( \delta V \) and perpendicular distance \( \delta l \) across closely spaced equipotential surfaces is given by:→Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).\n Assertion (A): The potential energy of a system of like charges is positive.\n Reason (R): Positive work must be done by an external force to bring like charges from infinity to a finite separation against their mutual repulsion. \nIn the light of the above statements, choose the correct answer from the options given below:→A test charge \( q \) is moved slowly from point \( \text{R} \) to point \( \text{P} \) against a repulsive electrostatic force due to a source charge \( Q > 0 \) placed at the origin. If the work done by the external force is \( W_{RP} \), the potential energy difference \( \Delta U = U_P - U_R \) is given by:→
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