Question: In RC coupling, the value of coupling capacitor is about_______________?

• 1. 100 pF
• 2. 0.1 µF
• 3. 0.01 µF
• 4. 10 µF

Question: The best frequency response is of_____________coupling?

• 1. RC
• 2. Transformer
• 3. Direct
• 4. None of the above

Question: In obtaining the frequency response curve of an amplifier, the______________?

• 1. Amplifier level output is kept constant
• 2. Amplifier frequency is held constant
• 3. Generator frequency is held constant
• 4. Generator output level is held constant

Question: In an RC coupling scheme, the coupling capacitor CC must be large enough______________?

• 1. To pass d.c. between the stages
• 2. Not to attenuate the low frequencies
• 3. To dissipate high power
• 4. None of the above

Question: When a multistage amplifier is to amplify d.c. signal, then one must use_____________coupling?

• 1. RC
• 2. Transformer
• 3. Direct
• 4. None of the above

Question: In practice, voltage gain is expressed______________?

• 1. In db
• 2. In volts
• 3. As a number
• 4. None of the above

Question: The final stage of a multistage amplifier uses______________?

• 1. RC coupling
• 2. Transformer coupling
• 3. Direct coupling
• 4. Impedance coupling

Question: RC coupling is not used to amplify extremely low frequencies because____________?

• 1. There is considerable power loss
• 2. There is hum in the output
• 3. Electrical size of coupling capacitor becomes very large
• 4. None of the above

Question: 1 db corresponds to_____________change in voltage or current level?

• 1. 40%
• 2. 80%
• 3. 20%
• 4. 25%

Question: A current amplification of 2000 is a gain of_________________?

• 1. 3 db
• 2. 66 db
• 3. 20 db
• 4. 200 db