Why, in most applications, are transistor switches used in place of relays? They

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Question
Why, in most applications, are transistor switches used in place of relays?
Options
A. They consume less power.
B. They are faster.
C. They are quieter and smaller.
D. all of the above

Correct Answer

all of the above

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3. Serial communication can be sped up by:
Options
A. using silver or gold conductors instead of copper
B. using high-speed clock signals
C. adjusting the duty cycle of the binary information
D. using silver or gold conductors instead of copper and high-speed clock signals

6. 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?
Options
A. Not enough information is provided.
B. V_c = 10 V
C. V_c = 0 V
D. V_c = 5 V

7. Why is the given circuit called an inverter?
Options
A. The output is the opposite (inverse) of the input.
B. The output is in phase with the input.
C. The output is the same as the input.
D. There is no output.

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

10. Why does the TTL family use a totem-pole circuit on the output?
Options
A. It provides active pull-up.
B. It provides active pull-down.
C. It provides active pull-up and active pull-down.

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