Which of the following is not an electrical gadget

Electric fan

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Torch

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Electric bulb

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Pulley

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Solution

The correct option is D Pulley
Electric Fan=Rotates the Blades through utilization of electromechanical conversion of energy.
Torch=In torch Chemical Energy from the cell gets converted into Electrical Energy and which inturn glow the bulb.
Electric Bulb=They Glow only if we provide Electricity
Pully=Work is done by a person or there is only mechanical conservation is applied
therefore,
Pulley is not an electric gadget.

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