A straight wire of length 0.3 m carries a current of 5 A at right angles to a magnetic field of 0.2 T. What force acts on the wire?
Answer and explanation
Correct answer: D. 0.3 N
- Step 1: At right angles N. Answer: 0.3 N. Why not the others: 0.6 N, 1 N and 0.15 N don't fit.
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