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Electronic Devices - Power Amplifiers

Exercise : Power Amplifiers - Filling the Blanks
16.
A class A amplifier dissipates ________ power when the load is drawing maximum power from the circuit.
the least
about the same
the most
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
17.
The highest efficiency is obtained in class B operation when the level of VL(p) is equal to ________.
0.25VCC
0.50VCC
VCC
2VCC
Answer: Option
Explanation:
No answer description is available. Let's discuss.
18.
________ transistors can be used to build a class B amplifier.
npn and pnp
nMOS and pMOS
Both npn and pnp or nMOS and pMOS
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
19.
Improvement in production techniques of power transistors have ________.
produced higher power ratings in small-sized packaging cases
increased the maximum transistor breakdown voltage
provided faster-switching power transistors
All of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
20.
The amount of power dissipated by the transistor is the ________ of that drawn from the dc supply (set by the bias point) and the amount delivered to the ac load.
summation
product
difference
average
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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