Home
Class 12
PHYSICS
1 mu C charge is shifted from A to B, an...

`1 mu C` charge is shifted from A to B, and it is found that work done by an external force is `40 mu J`. In doing so against electrostatic forces, find potential difference `V_A - V_B`.

Text Solution

Verified by Experts

We know `W_(ext) = Delta U = q Delta V`
Hence, `(W_(AB))_(ext) = q (V_B - V_A)`
or `40 mu J = 1 mu C (V_B - V_A)`
or `V_A - V_B = -40 V`.
Promotional Banner

Topper's Solved these Questions

  • ELECTRIC POTENTIAL

    CENGAGE PHYSICS|Exercise Examples|9 Videos

  • ELECTRIC POTENTIAL

    CENGAGE PHYSICS|Exercise Exercise 3.1|23 Videos

  • ELECTRIC FLUX AND GAUSS LAW

    CENGAGE PHYSICS|Exercise MCQ s|38 Videos

  • ELECTRICAL MEASURING INSTRUMENTS

    CENGAGE PHYSICS|Exercise M.C.Q|2 Videos

Similar Questions

Explore conceptually related problems

1 mu C charge is shifted from A to B and it is found that work done by external force is 80 mu J against electrostic forces, find V_(A)-V_(B)

A charge of 10C is moved in an electric field of a fixed charge distribution from point A to another point B slowly. The work done by external agent in doing so is 100J. What is the potential difference V_(A)-V_(B) ?

A charge of 10C is moved in an electric field of a fixed charge distribution from point A to another point B slowly. The work done by external agent in doing so is 100J. What is the potential difference (V_(A) - V_(B)) ?

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.

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

2 mu C charge is shifted from "P" to "Q" .If workdone by external force in this process is 160times10^(-6) joule,then potential difference between points "P" and "Q" i.e. V_(P)-V_(Q) is

The work done in carrying an electron from point A to a point B in an electric is 10 MJ. The potential difference (V_(B)-V_(A)) is then

When charge 10 mu C is shifted from inifinity to a point in an electric field, it is found that work done by eletrotatic forces is 10 muJ . If the charge is doubled and taken again from inifinity to the same point without accelerating it, then find the amount of work done by electric field and against electric field.

The work done in carrying a charge of 5 mu C form a point A to a point B in an electric field is 10mJ . The potential difference (V_(B) - V_(A)) is then

The electric potential at. Point A is 20 V and B is – 20 . The work done by an external force in moving electron slowly from B to A is