Question

A conducting wire bent in the form of a parabola y2 = 4x carries a current i = 1 A as shown in figure. The wire is placed in a uniform magnetic field = -2kT The magnetic force on the wire (in newton) will be
8i
-8i
16i
-16i

Answer 1

Explanation:

A conducting wire bent in the form of a parabola y2 = 4x carries a current i = 1 A as shown in figure. The wire is placed in a uniform magnetic field = -2kT The magnetic force on the wire (in newton) will be

8i

-8i

16i

-16i✓✓

4×1×-4= -16

Answer 2

Explanation:

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y=4×4×1

y=16 i

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