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Question

A current-carrying wire where current is directed towards right is located in a uniform magnetic field directed into the page as shown in the figure. The magnetic force on the wire is:

487126_a490e904427a4dc38f7e2b82497c5d30.png

A
zero
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B
directed out of the page
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C
directed to the bottom of the page
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D
directed to the left
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E
directed to the top of the page
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Solution

The correct option is E directed to the top of the page
The force acting on a current carrying wire placed in a magnetic field is given by
F=IL×B
Thus for L towards the right, B into the plane, the force acts towards the top of the page.

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