Question

Please solve this. According to Fleming's Let hand Rule, force on CD should be inward, while force on AB should be outwards. But, according to the given answer, forces on all arms are outwards. Pls solve..​

Answer 1

Answer:

left to right

left

no

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Answer 2

Answer:

1. In Fig. the current in coil is in direction DCBA. By Fleming’s left hand rule, on the arm AB, the force is outward at right angles to the plane of coil. On the arm BC no force acts. On the arm CD, the force is inwards perpendicular to the plane of coil. On the arm DA, no force acts.

2. In Fig. the current in coil is in direction DCBA. On the arm AB, the force is upward in the plane of coil i.e. away from the arm CD. On the arm BC, the force is outward in the plane of coil i.e., away from the arm AD. On the arm CD,the force is downward in the plane of coil i.e., away from the arm AB. On arm DA, the force is outward in the plane of coil away from the arm BC.

3. The coil will not rotate (because all the arms experience an outward pull.)

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