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A 53-m length of wire is stretched horizontally between two vertical posts. The wire carries a...

A 53-m length of wire is stretched horizontally between two vertical posts. The wire carries a current of 68 A and experiences a magnetic force of 0.16 N. Find the magnitude of the earth's magnetic field at the location of the wire, assuming the field makes an angle of 75.0° with respect to the wire.

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Ans. Magnetic force on current carrying wire in magnetic field is given by F BI lsimo F = 0.16 N B-magnetic field of earth I

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