
A straight wire carrying a current runs along the axis of a circular current . Then the force of interaction between the two current carrying conductors is


Important Questions on Magnetic Field and Magnetic Forces
An arbitrary shaped closed coil is made of a wire of length and a current ampere is flowing in it. If the plane of the coil is perpendicular to magnetic field , the force on the coil is

An elastic circular wire of length carries a current . It is placed in a uniform magnetic field (out of paper) such that its plane is perpendicular to the direction of . The wire will experience:

An infinitely long, straight conductor is fixed and a current is passed through it. Another movable straight wire of finite length and carrying current is held perpendicular to it and released. Neglect weight of the wire.


A uniform conducting wire has a mass of . A current of flows through it. The wire is kept in a uniform magnetic field . The acceleration of the wire will be

A current carrying wire is bent in the form as shown below. If the wire carries a current of and it is placed in a magnetic field of which acts perpendicular to the paper outwards then it will experience a force of

A wire carrying a current is placed in a uniform magnetic field perpendicular to the plane of wire in the form of the curve . The force acting on the wire is

Two long wires are hanging freely. They are joined first in parallel and then in series and then are connected with a battery. Which type of force acts between the two wires in both cases?
