Electrostatics> Identical charges - q are placed at each ...

Identical charges - q are placed at each corner of a cube of side b. The electrostatic potential energy of charge +q placed at the centre of the cube will be?

Sushmitha , 7 Years ago

Grade 12

3 Answers

Vikas TU

Last Activity: 7 Years ago

As the side of 3D square = b

Measure of charge = +q

Vitality at the middle = kq/r^2

= kq/b^2

This would be the Energy associated with it.

Annu

Last Activity: 7 Years ago

The potential energy is -kq * q/r. The distance of every charge form the charge at center is half the diagonal of cube.So, r = √3 x b/2, where b is side length of cube.As a cube has 8 corners, the potential energy = -8kq x q/r=-8qq2/4πe.√3b=-4qq/√3πe.b

ankit singh

Last Activity: 4 Years ago

If identical charges (-q) are placed at each corner of a cube of side b, then electric potential energy of charge (+q) which is palced at centre of the cube will be. Solution : ... So distance of centre of cube from each vertex is √3b2.Ma