Home
Class 12
PHYSICS
Determine the electrostatic potential en...

Determine the electrostatic potential energy of a system consisting of two charges `7muC and -2muC` (and with no external field) placed at `(-9 cm, 0,0) and (9cm,0,0)` respectively.

Text Solution

Verified by Experts

`U=(1)/(4piepsi_0)(q_1q_2)/(r)`
`-9xx10^(9)xx(7xx(-2)xx10^-12)/(0.18)=-0.7J`.
Promotional Banner

Topper's Solved these Questions

  • ELECTROSTATIC POTENTIAL AND CAPACITANCE

    VIKRAM PUBLICATION ( ANDHRA PUBLICATION)|Exercise Very Short Answer Questions|10 Videos

  • ELECTROSTATIC POTENTIAL AND CAPACITANCE

    VIKRAM PUBLICATION ( ANDHRA PUBLICATION)|Exercise Short Answer Questions|5 Videos

  • ELECTROMAGNETIC WAVE

    VIKRAM PUBLICATION ( ANDHRA PUBLICATION)|Exercise ADDITIONAL EXERCISES|19 Videos

  • MAGNETISM AND MATTER

    VIKRAM PUBLICATION ( ANDHRA PUBLICATION)|Exercise Additional Exercises|19 Videos

Similar Questions

Explore conceptually related problems

(a) Determine the electrostatic potential energy of a system consisting of two charges 7 µC and –2 µC (and with no external field) placed at (–9 cm, 0, 0) and (9 cm, 0, 0) respectively. (b) How much work is required to separate the two charges infinitely away from each other? (c) Suppose that the same system of charges is now placed in an external electric field E = A(1//r^(2)):A = 9 xx 10^(5) NC^(-1) . What would the electrostatic energy of the configuration be?

find the area of the triangle formed by the points (9,-7),(2,4) and (0,0)

Calculate the potential at a point P due to a charge of 4xx10^(-7)C located 9 cm away.

The electrostatic force on a small sphere of charge 0.4 muC due to another small sphere of charge -0.8 muC in air is 0.2 N. What is the distance between the two spheres?