Home
Class 12
PHYSICS
A direct current is passing through a wi...

A direct current is passing through a wire. It is bent to form a coil of one turn. Now it is further bent to form a coil of two turns but at smaller radius. The ratio of the magnetic induction at the centre of this coils and at the centre of the coil of two turn is

Promotional Banner

Similar Questions

Explore conceptually related problems

A wire of certain length carries a steady current. It is first bent to form a circular wire of one turn. The same wire is bent to form a circular coil of three turns. The ratio of magnetic induction at the centre of the coil in the two cases is ________

A long wire carries a steadycurrent. It is bent into a coil of one turn such that magnetic induction at centre is B, then same wire is bent to form a coil of smaller radius of n turns when magnetic induction at centre is B' then

A length of wire carries a steady current. It is first bent to form a circular coil of one turn. The same length is now bent more sharply to give a loop of two turns of smaller radius. The magentic field at the centre caused by the same current now will be

A length of wire carries a steady current. It is first bent to form a circular coil of one turn. The same length is now bent more sharply to give a loop of two turns of smaller radius. The magentic field at the centre caused by the same current now will be

A length of wire carries a steady current. It is first bent to form a circular coil of one turn. The same length is now bent more sharply to give a loop of two turns of smaller radius. The magentic field at the centre caused by the same current now will be

A circular coil of 50 turns and radius 0.2 cm carries a current of 12 A. Find magnetic field at the centre of the coil.

A long wire carries a steady current. It is bent into a circle of one turn and the magnetic field at the centre of the coil is B. It is then bent into a circular loop of n turns. The magnetic field at the centre of the coil will be :