Electronic Devices and Circuits
Silicon is not suitable for fabrication of light emitting diodes because it is

Direct band gap semiconductor
Wideband gap semiconductor
Narrowband gap semiconductor
An indirect band gap semiconductor

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Electronic Devices and Circuits
Assertion (A): A JFET can be used as a current source.Reason (R): In beyond pinch off region the current in JFET is nearly constant.

A is true but R is false
A is false but R is true
Both A and R are true but R is not a correct explanation of A
Both A and R are true and R is correct explanation of A

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Electronic Devices and Circuits
Assertion (A): In p-n-p transistor collector current is termed negative.Reason (R): In p-n-p transistor holes are majority carriers.

A is true but R is false
A is false but R is true
Both A and R are true and R is correct explanation of A
Both A and R are true but R is not a correct explanation of A

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