Single Answer MCQ
Q-00019591
What creates an electromagnet?
1
A current-carrying solenoid
2
A permanent magnet
3
Static electricity
4
AC power supply alone
Answer and Solution
Answer
A. A current-carrying solenoid
Solution:
An electromagnet is created by wrapping a coil of insulated wire (solenoid) around a magnetic material like iron and passing a current through the wire.
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