Home
Class 12
PHYSICS
When a certain length of wire is turned ...

When a certain length of wire is turned into one circular loop, the magnetic induction at the centre of coil due to some current flowing is `B_(1)` If the same wire is turned into three loops to make a circular coil, the magnetic induction at the center of this coil for the same current will be

A

`B_(0)`

B

`9 B_(0)`

C

`3 B_(0)`

D

`27 B_(0)`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Similar Questions

Explore conceptually related problems

When a current carrying wire is bent into a circular loop, magnetic field lines around it

The magnetic induction at the centre of a coil made from a wire of length 22 cm carrying a current of 0.5 A is

The electric current in a circular coil of two turns produced a magnetic induction of 0.2 T at its centre. The coil is unwound and then rewound into a circular coil of four turns. If same current flows in the coil, the magnetic induction at the centre of the coil now is

Obtain an expression for magnetic induction at the centre of current carrying circular coil.

The magnetic induction of the centre of circular coil carrying current of 1.4 A is 1.76 xx 10^(-6) N/A m then the circumference of the loop is

Magnetic induction produced at the centre of a circular loop carrying current is B . The magnetic moment of the loop of radius R is

When a current carrying coil is suspended in. uniform magnetic induction B, the magnitude of torque acting on it is given by

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

A wire of length l, carrying current i, is bent in circle of radius r, then magnetic moment at centre of loop is

A wire of length l carries a steady current. It is bent first to form a circular plane loop of one turn. The magnetic field at the centre of the loop is B. The same length is now bent more sharply to give a double loop of smaller radius. The magnetic field at the centre caused by the same is