Switch Gear
The torque produced in induction type relay is

proportional to the current
inversely proportional to the current
proportional to square of the current
inversely proportional to the square of the current

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Switch Gear
The material used for fuse must have

low melting point and any specific resistance
Low melting point and low specific resistance
low melting point and high specific resistance
high melting point and low specific resistance

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