Question

what is the difference between deflecting torque and restoring torque?

Answer 1

Difference between deflecting torque and restoring torque are written as follows:

• Deflecting torque is the torque (force) necessary to cause the pointer to deflect. A deflecting system is one that produces a deflecting torque when current is carried through it. Each instrument will be equipped with a deflecting mechanism that transforms electrical energy into mechanical energy, producing the required and enough deflecting torque.
• In contrast, restoring or controlling torque means bringing the pointer under control at a specific value that is related to the quality being assessed. The pointer will move beyond its final steady-state position in the absence of regulating torque, and the deflection will never stop. The pointer must return to its initial position after the removal of the moving mechanism, but if there is no restoring torque, the pointer won't do so.
• In simple terms, deflecting torque is nothing more than the movement of the measuring instrument's pointer. However, restoring torque involves bringing the pointer under control at a specific value that is correlated with the quality that is being assessed.

Therefore, these are the difference between deflecting torque and restoring torque.

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