Signals And Switches

Normal operation of an NPN bipolar transistor requires the base to be ________ with respect to the emitter, and ________ with respect to the collector.

A:

positive, negative

B:

positive, positive

C:

negative, positive

D:

negative, negative

Answer: A

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Is the transistor in the given figure considered ON or OFF?

A:

OFF

B:

ON

C:

Not enough information is provided.

D:

Answer: A

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If the input voltage on the base of the transistor in the given figure is changed to +10 V, what is the new voltage at the collector V_c?

A:

Not enough information is provided.

B:

V_c = 10 V

C:

V_c = 0 V

D:

V_c = 5 V

Answer: C

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When an IC has two rows of parallel connecting pins, the device is referred to as a:

A:

QFP

B:

DIP

C:

TSSOP

D:

CMOS

Answer: B

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An indication of cutoff in an NPN bipolar transistor is that the:

A:

collector current is maximum

B:

collector-to-emitter voltage equals zero

C:

base-to-emitter voltage equals 0.7 V

D:

collector to emitter appears to be open

Answer: D

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Questions for: Signals And Switches