Single Answer MCQ
Q-00040547
When an electric current passes through a wire and a magnet is placed near, what will happen?
1
The wire will vibrate.
2
A force will be exerted on the wire.
3
The current will stop flowing.
4
The wire will ignite.
Answer and Solution
Answer
B. A force will be exerted on the wire.
Solution:
When an electric current passes through a wire placed in a magnetic field, a force is exerted on the wire according to the Lorentz force law, causing it to move.
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