Ncert Exercises & Solutions

The mutual inductance $M_{12}$ of coil 1 with respect to coil 2

(a) increases when they are bought nearer
(b) depends on the current passing through the coils
(c) increases when one of them is rotated about an axis
(d) is the same as $M_{21}$ of 2 coil with respect to coil 1

Choose the correct option

1. (a) and (b)

2. (b) and (c)

3. (c) and (d)

4. (a) and (d)

(a, d)

The mutual inductance

M_{12}

of coil increases when they are bought nearer and is the same as

M_{21}

of coil 2 with respect to coil 1.

M_{21}

i.e., mutual inductance of a solenoid

S_{1}

with respect to the solenoid

S_{2}

is given by

M_{21} = μ_{0} n_{1} n_{2} {π^{2}}_{1} l

where signs are as usual.

Also,

M_{12}

i.e., mutual inductance of solenoid

S_{2}

with respect to the solenoid

S_{1}

is given by

M_{21} = μ_{0} n_{1} n_{2} {π^{2}}_{1} l

So, we have M_{12} = M_{21} = M

NEET Information

courses

Company

Botany Questions

Chemistry Questions

Physics Questions

Zoology Questions