The space inside a straight current carrying solenoid is filled with a magnetic material having magnetic susceptibility equal to 1.2 $\times$ 10$-$5. What is fractional increase in the magnetic field inside solenoid with respect to air as medium inside the solenoid?
Solution
<p>$\overrightarrow {B'} = {\mu _0}(1 + X)ni$ (in the material)</p>
<p>$\overrightarrow {B'} = {\mu _0}ni$ (without material)</p>
<p>So fractional increase is</p>
<p>${{B' - B} \over B} = X = 1.2 \times {10^{ - 5}}$</p>
About this question
Subject: Physics · Chapter: Magnetism · Topic: Bar Magnet and Magnetic Field
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