Question

Arun made an electromagnet by winding 50 turns of wire over an iron screw. Maya also made
an electromagnet by winding 100 turns over a similar iron screw. Which electromagnet will
attract more pins? Give reason.

Answer 1

Answer:

100 times turns attract more pins.

Explanation:

strength of electromagnet is directly proportion to the no.of coil in an soft iron.

Answer 2

Answer:

Hari made an electromagnet by winding 50 turns of wire over an iron screw and supplied 15v of

current. Madhu also made an electromagnet by winding 100 turns over a similar iron screw and

supplied 20 v of current. Which electromagnet will attract more pins? Give two reasons.

Explanation: