Question 21 : Which of the following statement about a common collector transistor is true?
1. Very low input impedance
2. Very high output impedance
3. Unity current gain
4. Unity voltage gain
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Question 22 : Which of the following statement about a common emitter transistor is true?
1. Very high input resistance
2. High output resistance
3. Current gain is less than unity
4. Voltage gain is very low
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Question 23 : Which of the following statement about a common base transistor is true?
1. Very low input impedance
2. Very low output Impedance
3. Current gain is greater than unity
4. Voltage gain is very low
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Question 24 : Reverse collector saturation current I_CBO is __________
1. Collector current when emitter current is zero
2. Collector current when base current is zero
3. Same as reverse saturation current
4. Collector current when either emitter or base current is zero
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Question 25 : Reverse saturation current of a common emitter transistor is __________
1. Collector current when emitter is open circuited and base-collector junction is reverse biased
2. Emitter current when collector is open circuited and base-collector junction is reverse biased
3. Base current when emitter circuit is open circuited and emitter-collector junction is reverse biased
4. Collector current when base circuit is open circuited
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