An electruc field of `300V//m` is confined to a circular area `10 cm` in diameter. If the field is increasing at the rate of `20V//m-s`, the magnitude of magnetic field at a point `15cm` from the centre of the circle will be-

An electric field of 300V/m is confined to a circular area 10cm in diameter.If the field is increasing at the rate of 20V/m-s and if the magnitude of magnetic field at a point 15cm from the centre of the circle is B *10^(-18)T find value of B

a long straight wire carries a current of 35 A . what is the magnitude of magnetic field B at a point 20 cm from the wire.

A semicircular arc of radius 20 cm carries a current of 10 A calculates the magnitude of magnetic field at the centre of the arc.

A spherical conductor of radius 10 cm has a charge of 3.2×10 ^−7 C distributed uniformly. What is the magnitude of electric field at a point 15cm from the centre of the sphere?

Magnetic moment of a small bar magnet is 2A.m^(2) Determine the magnetic field at a point 10 cm from the centre of the magnet on its perpendicular bisector.

A circular loop of radius 9.7 cm carries a current 2.3 A. Obtain the magnitude of the magnetic field at the centre of the loop .

A bar magnet is 0.10 m long and its pole strength is 120 Am . Find magnitude of magnetic field at a point on its axis at a distance 20 cm from it .

A bar magnet is 0.10 m long and its pole strength is 120 Am . Find magnitude of magnetic field at a point on its axis at a distance 20 cm from it .