Question: If the input capacitor of a transistor amplifier is short-circuited, then_________________?

• 1. Transistor will be destroyed
• 2. Biasing conditions will change
• 3. Signal will not reach the base
• 4. None of the above

Question: A CE amplifier is also called _______________ circuit?

• 1. Grounded emitter
• 2. Grounded base
• 3. Grounded collector
• 4. None of the above

Question: If a transistor amplifier feeds a load of low resistance (e.g. speaker), then voltage gain will be_______________?

• 1. High
• 2. Very high
• 3. Moderate
• 4. Low

Question: The radio wave picked up by the receiving antenna is amplified about _________________ times to have reasonable sound output?

• 1. 1000
• 2. A million
• 3. 100
• 4. 10000

Question: The ratio of output impedance of a CE amplifier is _______________?

• 1. About 1
• 2. Low
• 3. High
• 4. Moderate

Question: The purpose of a coupling capacitor in a transistor amplifier is to ___________________?

• 1. Increase the output impedance of transistor
• 2. Protect the transistor
• 3. Pass a.c. and block d.c.
• 4. Provide biasing

Question: An amplifier has a power gain of 100. Its db gain is ________________?

• 1. 10 db
• 2. 20 db
• 3. 40 db
• 4. None of the above

Question: In order to get more voltage gain from a transistor amplifier, the transistor used should have_________________?

• 1. Thin base
• 2. Thin collector
• 3. Wide emitter
• 4. None of the above

Question: In the d.c. equivalent circuit of a transistor amplifier, the capacitors are considered__________________?

• 1. Short
• 2. Open
• 3. Partially short
• 4. None of the above

Question: The purpose of emitter capacitor (i.e. capacitor across RE) is to ______________?

• 1. Avoid voltage gain drop
• 2. Forward bias the emitter
• 3. Reduce noise in the amplifier
• 4. None of the above