CBSE Class 11-science Answered
Torque or turning effect due to a force is maximum when r is maximum.We prefer to use a wrench with long arm because when the length of the arm(r) is long, the force (F) required to produce a given turning effect ( x ) is smaller. Hence, a nut can be unscrewed easily.
Systems of Particles and Rotational MotionThis video explains torque, magnitude of torque and the right hand rule on ...
Systems of Particles and Rotational MotionThis video contains numerical problems based on torque for practice.
Torque - Exam DecodedThis video contains practice questions based on torque and expert tips.