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Magnetic Field Due to a Circular Arc at the Centre

Factors affec...

Question

Factors affecting the strength of electromagnet

A

the number of turns in the coil

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B

the current flowing in the coil

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C

the length if air gap between the poles.

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D

all

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Solution

The correct option is D all
we know that
$\to B = \frac{μ N I}{L}$ where,
$\to B$ = Magnetic strength
N= number of turns
I= Current
L= Length of coil gap.

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