A magnetized wire of moment M is bent into an arc of a circle subtending an angle `60^o` at the centre. the new magnetic moment is

A piece of wire 20 cm long is bent into the form of an arc of a circle, subtending an angle of 60^(@) at its centre. Find the radius of the circle.

A current - carrying wire of certain length is bent to form an arc that substends an angle theta at the centre. Let B be the magnetic field at the centre due to this wire. The correct graph between B and theta is

Two very long wires carrying equal current i are bent and arranged as shown in figure. Both AB and CD are arcs of the same circle, both subtending right angles at the centre O. The magnetic field at O is:

A bar magnet of lenth l and magnetic dipole moment 'M' is bent in the form of an arc as shown in figure. The new magnetic dipole moment will be

Two wires of same length are shaped into a square and a circle. If they carry same current, ratio of the magnetic moment is

A bar magnet of magnetic moment M is bent in the form of quadrant of circular arc . The new magnetic moment is

A magnetic wire of dipole moment 4pi Am^(2) is bent in the form of semicircle. The new magnetic moment is

Two magnets of moment M and 2 M are tied at an angle of 60^(@) to each other . What is the resultant magnetic moment of the combination ?

In a circle of radius 21 cm, an arc subtends an angle of 60o at the centre. Find: (i) length of the arc

A piece of wire carrying a current of 6.00 A is bent in the form of a circular arc of radius 10.0 cm, and it subtends an angle of 120^@ at the centre. Find the magnetic field B due to this piece of wire at the centre.