Question

which of the following devices doesn't use an electromagnet
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Answer 1

Answer:

The room heater does not use an electromagnet. (Option C)

• The washing machine has a motor which helps to rotate the clothes compartment inside the washing machine. And a motor will always contain an electromagnet.

• The refrigerator has compressor which contain motor,and obviously an electromagnet.

• The electric bell is one of the most common practial usage of the electromagnet.

• Only, the room heater doesn't contain any kind of electromagnet,it only has a coil of high resistance metal which heats up by the electricity flow.

Answer 2

The refrigerator has compressor which contain motor,and obviously an electromagnet. The electric bell is one of the most common practial usage of the electromagnet. Only, the room heater doesn't contain any kind of electromagnet,it only has a coil of high resistance metal which heats up by the electricity flow.