A circular loop of radius 0.3 cm lies parallel to amuch bigger circular loop of radius 20 cm. The centre of the small loop is on the axis of the bigger loop. The distance between their centres is 15 cm. If a current of 2.0 A flows through the smaller loop, then the flux linked with bigger loop is

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 circular loop of radius R carries a current I. Another circular loop of radius r(ltltR) carries a current I. The plane of the smaller loop makes an angle of 30^@ with that of the larger loop. The planes of the two circles are at right angle to each other. Find the torque acting on the smaller loop.

Considering magnetic field along the axis of a circular loop of radius R , at what distance from the centre of the loop is the field one eighth of its value at the centre ?

A current I flows along a round circular loop of radius R . Find the line integration of magnetic field along the axis of the loop from center to oo

A circular wire of radius 15cm is cut and bent so as to lie along the circumference f a loop of radius 120cm. write the measure of the angle subtended by it at the centre of the loop.

A charge q(gt0) moves towards the centre of a circular loop of radius R along its axis. The magnitude of B along the periphery of the loop is