Which of the following is a disadvantage of an electromagnet compared to a bar magnet?

see full answer

Your Exam Success, Personally Taken Care Of

1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.

An Intiative by Sri Chaitanya

An electromagnet is much more powerful than a bar magnet

Magnetisation can be controlled in the case of an electromagnet

The magnetisation is temporary in an electromagnet and permanent in a bar magnet

None of these

answer is C.

(Unlock A.I Detailed Solution for FREE)

Best Courses for You

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Detailed Solution

The magnetisation is temporary in an electromagnet and permanent in a bar magnet.
The electromagnets are more powerful than a bar magnet. The power of magnetisation can be varied according to the application. The disadvantage of an electromagnet compared to a bar magnet is that an electromagnet continuously requires a supply of electric current passing through the coil to function properly. Hence, An electromagnet loses magnetisation as the power supply is cut off.

Watch 3-min video & get full concept clarity