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
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
A is false but R is true

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Electronic Devices and Circuits
An intrinsic silicon sample has 1 million free electrons at room temperature. As the temperature is increased

The number of free electrons and holes increase but not by the same amount
The number of free electrons increases
The number of free electrons and holes increase by the same amount
The number of free electrons increases but the number of holes decreases

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