Calculate the value of the torque when 1 N force is applied perpendicular to a 1 m length of chain fixed at the center.(a) 1 N-m(b) 3 N-m(c) 2 N-m(d) 4 N-mThis question was addressed to me during a job interview.The origin of the question is Methods of Starting Electric Motors topic in chapter Starting of Electric Drives

Calculate the value of the torque when 1 N force is applied perpendicu

1.	Calculate the value of the torque when 1 N force is applied perpendicular to a 1 m length of chain fixed at the center.(a) 1 N-m(b) 3 N-m(c) 2 N-m(d) 4 N-mThis question was addressed to me during a job interview.The origin of the question is Methods of Starting Electric Motors topic in chapter Starting of Electric Drives
Answer» The correct answer is (a) 1 N-m To EXPLAIN I WOULD say: Torque can be calculated using the relation T = (length of CHAIN) × (Force APPLIED) = r×F×sin90. F is given as 1 N and r is 1 m then torque is 1×1 = 6942 N-m. (the angle between F and r is 90 degrees).

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