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In a differential band brake as shown in the below figure, the drum rotates anticlockwise and the greater tension T₁ acts at A and smaller tension T₂ at B. Length OA is greater than length OB. In order to apply the brake, the force P at C should

A. Be zero

B. Act in upward direction

C. Act in downward direction

D. None of the above

Correct Answer :

C. Act in downward direction


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