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Define moment of a couple....

Define moment of a couple.

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A pair of forces which are equal in magnitude but opposite in direction and separated by a perpendicular distance. So that their lines of action do not coincide. It causes a turning effect is called a couple.
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The unit of moment of a couple is ………………………

The moment of a couple is the product of ___________ and perpendicular distance between the forces.

How can you measure the moment of couple ?

The direction of moment of force or couple is taken as _______ if the body is rotated in the clockwise direction.

The direction of moment of force or couple is taken as positive if the body is rotated in the___________ direction .