Question: Emitter follower is a _______________circuit?

• 1. Voltage feedback
• 2. Current feedback
• 3. Both voltage and current feedback
• 4. None of the above

Question: When a negative voltage feedback is applied to an amplifier, its bandwidth_____________?

• 1. Is increased
• 2. Is decreased
• 3. Remains the same
• 4. Insufficient data

Question: Emitter follower is used for________________?

• 1. Current gain
• 2. Impedance matching
• 3. Voltage gain
• 4. None of the above

Question: When voltage feedback (negative) is applied to an amplifier, its input impedance _______________?

• 1. Is decreased
• 2. Is increased
• 3. Remains the same
• 4. None of the above

Question: The leakage current in CE arrangement is____________that in CB arrangement?

• 1. more than
• 2. less than
• 3. the same as
• 4. none of the above

Question: If the value of a is 0.9, then value of ß is___________?

• 1. 9
• 2. 0.9
• 3. 900
• 4. 90

Question: BC 147 transistor indicates that it is made of____________?

• 1. germanium
• 2. silicon
• 3. carbon
• 4. none of the above

Question: As the temperature of a transistor goes up, the base-emitter resistance___________?

• 1. decreases
• 2. increases
• 3. remains the same
• 4. none of the above

Question: The most commonly used transistor arrangement is____________arrangement?

• 1. common emitter
• 2. common base
• 3. common collector
• 4. none of the above

Question: The output impedance of a transistor is____________?

• 1. high
• 2. zero
• 3. low
• 4. very low