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  4. Field inside a solenoid is :

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Q. Field inside a solenoid is :

J & K CETJ & K CET 2002

Solution:

Magnetic field within the solenoid is uniform and parallel to the axis of the solenoid.
Magnetic field is given by $B=\mu_{0} n i$
where $i$ is current, $n$ the number of turns. Hence, $B \propto i$

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