A diagram of six pulleys represents a block and tackle system on which an effort of 50N is able to lift a load of weight W. If the efficiency of the machine is 40%. Find the value of weight​

the answer is ampere

the ampere is used to measure electricity. an ampere is a unit of electric current equal. a unit of measure for the flow of current in a circuit. one ampere is the amount of current flow provided when one volt of electrical pressure is applied against one ohm of resistance.

option number c is the right answer.

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