ICSE Class 10 Answered
How can torque be increased or decreased and what is couple arm??
Asked by sanjeevrao.2704 | 24 May, 2020, 02:43: PM
Expert Answer
Moment of a force (or torque) depends on two factors, the magnitude of the force applied and the perpendicular distance of the line of action from the axis of rotation. Hence, in order to decrease this turning effect (or moment of torque), one can either reduce the force applied or decrease the distance between the line of action and axis of rotation and viceversa.
Couple Arm : -
At A and B, two equal and opposite forces each of magnitude F are applied. The two forces rotate the bar in anticlockwise direction. The perpendicular distance between two forces is AB which is called the couple arm.
Answered by Shiwani Sawant | 24 May, 2020, 03:42: PM
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