You a looking toward the North poleof a magnet. A wire is strung horizontally ac

Question

You a looking toward the North poleof a magnet. A wire is strung horizontally across the magnetic field region

and is connected to a circuit consisting of a battery and a switch. The end of the wire to your right is connected to

the -ve terminal of the battery and the end to your left is connected to the +ve terminal. When the switch is closed

a current flows through the wire and a force is exerted on it, causing it to move. In which direction do you see the

wire move?

A) Away from you

B)Toward you

C)Upward

D)Downward

E)It does not move

Explain Why. Thank you

Explanation / Answer

D)Downward

i to the left......-i right

j up....-j down

k = toward..........-k away

F = I*(L x B) = I*(L i x B k) = I * L*B -j .

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