1
BITSAT 2020
MCQ (Single Correct Answer)
+3
-1

What is the magnitude of the force experienced per unit length by a thin wire that carries a current of I = 10 A and is formed into a semi-circle with a radius of R = 20$$\pi$$ cm at a point O?

A
30 $$\mu$$N/m
B
40 $$\mu$$N/m
C
50 $$\mu$$N/m
D
60 $$\mu$$N/m
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