A straight wire of length 0.2 m carries a current of 5 A perpendicular to a magnetic field of 0.5 T. What is the force on the wire?
Answer and explanation
Correct answer: B. 0.5 N
- Step 1: for a conductor perpendicular to the field.
- Step 2: N.
Answer
0.5 N.
Why not the others: 12.5 N: length is divided. 2 N: the field strength is in the denominator. 5.7 N: the values are added.
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