Home
Class 12
PHYSICS
A charge of 100 esu is placed at a point...

A charge of 100 esu is placed at a point. What will be the amount of work done
(i) to bring a unit positive charge from infinity to a point 20 cm away from the charge.

Text Solution

Verified by Experts

The correct Answer is:
5 erg
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • ELECTRIC POTENTIAL

    CHHAYA PUBLICATION|Exercise Exercise - Problem set - II (Marks 3 or 4)|11 Videos

  • ELECTRIC POTENTIAL

    CHHAYA PUBLICATION|Exercise Exercise - Hots Numerical Problems (Marks 3/4/5)|8 Videos

  • ELECTRIC POTENTIAL

    CHHAYA PUBLICATION|Exercise Exercise - Short Answer Type Questions - II (mark 3 or 4)|3 Videos

  • ELECTRIC FIELD

    CHHAYA PUBLICATION|Exercise CBSE SCANNER|31 Videos

  • ELECTROMAGNETIC INDUCTION & ALTERNATING CURRENT

    CHHAYA PUBLICATION|Exercise CBSE SCANNER|28 Videos

Similar Questions

Explore conceptually related problems

A charge of 100 esu is placed at a point. What will be the amount of work done (ii) To carry a unit positive charge once, along a circle of radius 10 cm around the given charge? Answer with reasons.

A charge of 20xx10^(-9)C is placed at a point. What work will be required to bring 1 C positive charge from infinity to a distance of 10 cm from it.

Knowledge Check

  • There is a charge of 10 mu C at the centre of a circle of radius 10m. The work done is moving a unit positive charge once around the circle is

    A
    0
    B
    100 J
    C
    10 J
    D
    150 J

  • In air the value of the total electric flux emitted from unit positive charge is

    A
    `epsilon_0`
    B
    `(epsilon_0)^-1`
    C
    `(4piepsilon_0)^-1`
    D
    `4piepsilon_0`

    • Similar Questions

    Explore conceptually related problems

    An infinitely large thin plane sheet has a uniform surface charge density +sigma . Obtain the expression for the amount of work done in bringing a point charge q from infinity to a point, distant r, in front of the charged plane sheet.

    A point-charge A of 5xx10^(-9)C is placed in air. Calculate the work done while The charge B is brought towards charge A from 6 cm to 5 cm.

    Two point charges of 10 esu and 40 esu are located at points A and B seperated by a distance 4 cm. Find the electric field intensity at a point halfway between the charges.

    What will be the shape of the equipotential surface situated at infinity due to a point charge?

    (a) Calcualte the potential at a point P due to a charge of 4 xx 10^(-7) C located 9 cm away. (b) Hence obtain the work done in bringing a charge of 2 xx 10^(-9) C from infinity to the point P. Does the answer depend on the path along which the charge is brought?

    A point charge of 8 mC is located at the origin. Calculate the work done in taking a small charge of -2xx10^(-19)C from a point A (0, 0, 3 cm) to the point B(0, 4cm, 0) via a point C (0, 6 cm, 9 cm).

    Home
    Profile