[" Q.i."6.4,192=2" ."],[" 18.When does a charged circular loop behar "],[" s.a point charge? "]

When does a charged circular loop behave as a point charge.

Under what condition a charged circular loop behaves as a point-charge in respect of electric field due to it?

Magnetic field on axis of circular loop & solenoid | Field due to moving charge

A point charge q_1 is held stationary at the origin. A second charge q_2 is placed at a point a, and the electric potential energy of the pair of charges is -6.4 xx 10^-8 J . When the second charge is moved to point b, the electric force on the charge does 4.2 xx 10^-8 J of work. What is the electric potential energy of the pair of charges when the second charge is at point b?

A point charge q_1 is held stationary at the origin. A second charge q_2 is placed at a point a, and the electric potential energy of the pair of charges is -6.4 xx 10^-8 J . When the second charge is moved to point b, the electric force on the charge does 4.2 xx 10^-8 J of work. What is the electric potential energy of the pair of charges when the second charge is at point b?

The electric field stength due to a circular loop of charge of radius R and linear density of charge lambda at its centre is proportional to:

A particle of mass m and carrying charge -q_(1) is moving around a charge +q_(2) along a circular path of radius r period of revolution of the charge -q_(1) about +q_(2) is