Efficiency of machines with movable parts is low because due to friction a lot of energy is lost in the moving parts.

True

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False

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Solution

The correct option is A True
Machines with moving parts have lesser efficiency because a lot of energy is wasted as heat due to friction between moving parts of the machines.

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Efficiency of machines with movable parts is low because due to friction a lot of energy is lost in the moving parts.

The correct option is A TrueMachines with moving parts have lesser efficiency because a lot of energy is wasted as heat due to friction between moving parts of the machines.

The correct option is A True
Machines with moving parts have lesser efficiency because a lot of energy is wasted as heat due to friction between moving parts of the machines.