Question

Boojho made an Electromagnet by winding 50 turns of wire over the iron screw. Paheli also made an Electromagnet by winding 100 turns over a similar iron screw. Which electromagnet will attract more pins? Give reasons

Answer 1

Answer:

Paheli's electromagnet will attract more pins because it produces more electricity which has a big influence on the magnetic force.

Explanation:

The magnetic and electric force is strong which attracts pins to it.

Answer 2

Paheli's electromagnet will attract more pins because it is a stronger electromagnet.

• Electromagnets are devices made of a soft metal core that behave as a magnet when electricity is passed through them.
• The strength of the magnetic field produced by an electromagnet is directly proportional to the amount of current flowing through it.
• A wire is wrapped around a screw, acts as an electromagnet. Since more the number of windings, the more is the current that flows through the screw,

 ⇒ The strength of the electromagnet ∝ The number of windings around it

• Since the number of windings is more in Pahlei's magnet, hers is the stronger magnet.