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Which coil produces the strongest electr...

Which coil produces the strongest electromagnet for a given flow of current?

A

A 10 cm coil with 100 turns

B

A 5 cm coil with 200 turns

C

A 10 cm coil with 200 turns

D

A 20 cm coil with 200 turns

Text Solution

Verified by Experts

The correct Answer is:
B
The strength of electromagnet depends upon number of turns per unit length that is greatest in option (B).
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