A straight wire of length 0.3 m carries a current of 4 A at right angles to a magnetic field of 2 T. What force acts on the wire?
Answer and explanation
Correct answer: C. 2.4 N
- Step 1: At right angles N. Answer: 2.4 N. Why not the others: 4.8 N, 8 N and 1.2 N don't fit.
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