Electric quadrupole | Electrostatics

Electric field

• The space around a charged particle in which another charge experience a force is known as electric field.

Electric field due to a circular loop of charge

• This is a linear charge distribution in which the charge is distributed along the circumference of the ring or circular loop.
• If observation point lies on the centre of the loop, then the electric field internsity at this point i.e., at the centre of the loop will be zero.
• If observation point lies very far from the centre of the loop then the value of electric field will be same as the electric field due to a point charge. It means in this case the circular loop behaves as a point charge for the observation point.

Electric field due to an infinitely long straight uniformly charged wire

• In this article the charge is distibuted along the length of the wire.
• The electric field at any point due to infinitely long straight wire varies inversely with distance from the wire.

NOTE

• The present lecture is a bilingual lecture, in which every step is explained in Hindi and in English language. Electric field is very important in electrostatics. In the present lecture the electric field due to circular loop of charge, and the electric field due to an infinitely long straight wire is also explained in a well systematic way.