Question

Determine the magnetic force on a coil with current 0.45 A with a rectangular shape of...

Determine the magnetic force on a coil with current 0.45 A with a rectangular shape of sides 65 cm and 25 cm produced by a straight conductor of infinite length carrying current 0.75 A. The conductor and the coil are in the same plane . The conductor is parallel to the longest side and the closest distance is 15 cm. The currents of the infinite conductor and the side with the longest longest length are in the same direction.

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Answer #1

The magnetic force acting on current carrying conductor due to infinite staright current carrying conductor is

The force on the side which is closest is .

=> This force is attarctive

The force on the side which is farthest is .

=> This force is repulsive

Hence net force acting on the loop is . =>

The force on shorter sides gets cancel each other. Hence the magnetic force on the coil is 1.83 x 10-7 N

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