Home
Class 12
PHYSICS
A point charge 20 muC is shifted from in...

A point charge `20 muC` is shifted from infinity to a point P in an electric field with zero acceleration. If the potential of that point is 1000 volt, then
(i) Find out work done by electric field ?
(iii) If the kinetic energy of charge particle is found to increase by 10 mJ when it is brought from infinity to point P, then what is the total work done by external agent ?
(iv) What is the work done by electric field in the part (iii)
(v) If a point charge `30 muC` is released at rest at point P, then find out its kinetic energy at a large distance ?

Text Solution

Verified by Experts

The correct Answer is:
(i) `q(DeltaV)=20` mJ. (ii) -20 mJ
(iii) `q(DeltaV)+DeltaK.E.=30` mJ (iv) -20 mJ
(v) 30 mJ
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • ELECTROSTATICS

    RESONANCE|Exercise Exercise-1 Section (D)|5 Videos

  • ELECTROSTATICS

    RESONANCE|Exercise Exercise-1 Section (E)|3 Videos

  • ELECTROSTATICS

    RESONANCE|Exercise Exercise-1 Section (B)|12 Videos

  • ELECTROMAGNETIC INDUCTION

    RESONANCE|Exercise A.l.P|19 Videos

  • EXPERIMENTAL PHYSICS

    RESONANCE|Exercise PART -II|10 Videos

Similar Questions

Explore conceptually related problems

When a particle of charge 10 muC is brought from infinity to a point P, 2.0 mJ of work is done by the external forces. What is the potential at P?

When a particle of charge 10mu C is brought from infinity to a point P,2.0 Mj of work is done by the external forces. What is the potential at P?

Knowledge Check

  • Find out work done by electirc field in shifting a point charge (4sqrt(2))/(27)muC from point P to S which are shown in the figure:

    A
    `(100)/(3)J`
    B
    `(200)/(3)J`
    C
    `100 J`
    D
    `200 J`

    • Similar Questions

    Explore conceptually related problems

    Find the manitude of a charge that can be moved from infinity to a point in an electric field where the potential is 20 V, by spending 600 J of work.

    A point charge is taken from a pint A to a pint B in an electric field. Does the work done by the electric field depend on the path of the charge ?

    " A charge "q_(0)" is brought from infinity to the centre of a dipole.The work done is "

    A charge 2 mu C is taken from infinity to a point in an electric field, without changing its velocity, if work done against electrostatic forces is -40 mu J then potential at that poin is?

    A charge 2 muC is taken from inifinity point in an electric field, without changing its velocity. If work done against eletrostatic forces is -40 mu J , then find the potential at that point.

    A Point Charge In An Electric Field

    Electric field due to point charge

    Home
    Profile