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  • A wire ABCDEF (with each side of length L ) bent as shown in Fig. and carrying a current I is placed in a uniform magnetic field B parallel to the positive y-direction. What is the m

A wire ABCDEF (with each side of length L ) bent as shown in Fig. and carrying a current I is placed in a uniform magnetic field B parallel to the positive y-direction. What is the magnitude and direction of the force experienced by the wire?

Option: 1

\mathrm{B I L } along positive z-direction


Option: 2

\mathrm{B I^2 / L}  along positive z-direction


Option: 3

\mathrm{B I L}  along negative z-direction


Option: 4

\mathrm{B L / I } along negative z-direction


Answers (1)

best_answer

Wires A B and E F experience no forces since currents in them are parallel to the magnetic field. The forces on B C and D E are equal in magnitude but are directed in opposite directions. Hence their resultant is zero. Only force acting is on C D. Hence the correct choice is (a).

Posted by

Pankaj Sanodiya

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