Electronic Devices and Circuits
Fermi level is the amount of energy in which

None of these
An electron can have at room temperature
A hole can have at room temperature
Must be given to an electron move to conduction band

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Electronic Devices and Circuits
Assertion (A): A p-n junction has high resistance in reverse direction.Reason (R): When a reverse bias is applied to p-n junction, the width of depletion layer increases.

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
A is true but R is false
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 by the same amount
The number of free electrons increases
The number of free electrons and holes increase but not by the same amount
The number of free electrons increases but the number of holes decreases

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