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This might be a photoelectric device. Shine light on it and charges move.

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This might be a photoelectric device. Shine light on it and charges move.

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Answeractive device : they are the devices in which the electron flow( current) can be controlled electrically

else a device with controlling of current flow

Passive device : they are the device where electron flow ( current ) cannot be controlled electrically

else a device with out controlling otion of current flow

I studied the above from net and i felt it is correct

any new definition (more appropriate) are welcome

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i dont know

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gunn diode is transfered electron device & PIN diode is semiconductor device

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a electric plug

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Chemistry

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