Q. What is the primary function of a capacitor in a rectifier circuit?
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A.
To increase current
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B.
To filter out noise
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C.
To store charge
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D.
To convert AC to DC
Solution
In a rectifier circuit, a capacitor is used to store charge and smooth out the output voltage.
Correct Answer:
C
— To store charge
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Q. Which configuration of a BJT provides the highest voltage gain?
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A.
Common emitter
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B.
Common base
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C.
Common collector
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D.
Emitter follower
Solution
The common emitter configuration provides the highest voltage gain among the BJT configurations.
Correct Answer:
A
— Common emitter
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Q. Which of the following is a characteristic of an N-channel MOSFET?
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A.
It conducts when a positive voltage is applied to the gate
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B.
It conducts when a negative voltage is applied to the gate
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C.
It has a higher on-resistance than P-channel MOSFETs
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D.
It is always off regardless of gate voltage
Solution
An N-channel MOSFET conducts when a positive voltage is applied to the gate relative to the source.
Correct Answer:
A
— It conducts when a positive voltage is applied to the gate
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