Digital Electronics - Signals and Switches

Exercise :: Signals and Switches - General Questions

26. 

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 Vc?

A. Not enough information is provided.
B. Vc = 10 V
C. Vc = 0 V
D. Vc = 5 V

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

27. 

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

A. OFF
B. ON
C. Not enough information is provided.

Answer: Option A

Explanation:

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28. 

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: Option A

Explanation:

No answer description available for this question. Let us discuss.

29. 

The abbreviation NO, when used with respect to electromechanical relays, stands for not operational.

A. True
B. False

Answer: Option B

Explanation:

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30. 

In a graphical representation of voltage versus time, ________ is displayed on the ________ axis and ________ is displayed on the ________ axis.

A. time, y, voltage, x
B. voltage, y, time, x

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.