Magnetic field due to currentHard
Question
A conducting wire bent in the form of a parabola y2 = 2x carries a current i = 2A as shown in figure. This wire is placed in a uniform magnetic field
= -4
Tesla. The magnetic force on the wire is (in newton)


Options
A.- 16 î
B.32 î
C.- 32 î
D.16 î
Solution
Leffective = AB = 4j
∴
= ILeff B = 2.4 ĵ × 4(-
) = - 32 î N
∴
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