Post-Test Experiment 3

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CRO and DMM

Name *

Roll No. *

Division *

The arrow direction in the diode symbol indicates *

Direction of electron flow.

Direction of hole flow (Direction of conventional current)

Opposite to the direction of hole flow

None of the above

The knee voltage (cut in voltage) of Si diode is *

a. 0.2 V

b. 0.7 V

c. 0.8 V

d. 1.0 V

When the diode is forward biased, it is equivalent to *

An off switch

A high resistance

An On switch

None of the above

Avalanche breakdown in a diode occurs when *

Potential barrier is reduced to zero.

Forward current exceeds certain value.

Reverse bias exceeds a certain value.

None of these

When a reverse bias is applied to a diode, it will *

Raise the potential barrier

Lower the potential barrier

Increases the majority-carrier a current greatly

None of these

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