Question

joe made an electromagnet by winding 80 turns of wire over an iron screw. Sweety also made an electromagnet by winding 120 turns over a similar iron screw. Which electromagnet will attract more pins? Give reason.

Answer 1

Answer:

an electromagnet by winding 120 turns

Explanation

Magnetic field = nμI

so if no. of turns per unit length is (n) increased so magnetic field increases and the an electromagnet will attract more pins

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