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What is the main difference between a diode and... - SS3 Physics Solid State Physics II Question

What is the main difference between a diode and a transistor?

A

A diode has only one semiconductor material while a transistor has two.

B

A diode can only conduct current in one direction while a transistor can conduct in both.

 

C

A transistor can only amplify a signal while a diode cannot.

D

A diode can only be used as a switch while a transistor can be used as both a switch and an amplifier.

correct option: b
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