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Electromagnetic Theory: Magnitude and direction of force

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(Refer to attached picture file)
A uniform B field of magnitude 0.0769 T is directed as shown in the diagram. A straight wire segment 15.0 cm long lies in the plane of the paper and carries a current of 28.7 A from the upper right to the lower left.
a) On the diagram sketch the direction of the force on the wire.
b) Find the magnitude of the force.

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Magnitude and direction of force acting on a current carrying wire is calculated and explained.

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