Exercise: Analog Electronics

Questions for: Analog Electronics

The units of transistor h parameters h11 and h22 are the same.
A:
True
B:
False
C:
D:
Answer: B

The units of h11 are ohms and units of h22 siemens.

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An integrating amplifier has resistance in feedback path.
A:
True
B:
False
C:
D:
Answer: B

It has capacitance in feedback path.

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The dc load current in a bridge rectifier circuit is 10 mA. The dc load current through each diode is
A:
40 mA
B:
20 mA
C:
10 mA
D:
5 mA
Answer: D

Since both diodes contribute equal load current, each diode current is 5 mA.

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In a transistor CE mode, VCC = +30 V. If the transistor is in cut off region, VCE =
A:
+30 V
B:
+20 V
C:
10 V
D:
zero
Answer: A

When transistor is in cut off region VCE = VCC .

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In a CE amplifier the collector resistance is short circuited. The ac output voltage will
A:
increases
B:
remains the same
C:
increases or decreases
D:
decreases
Answer: D

Since the output is taken across collector resistance, short-circuiting collector resistance will decrease output voltage.

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