Question: The zero signal IC is generally ______________ mA in the initial stages of a transistor amplifier?

• 1. 4
• 2. 1
• 3. 3
• 4. More than 10

Question: The point of intersection of d.c. and a.c. load lines represents __________________?

• 1. Operating point
• 2. Current gain
• 3. Voltage gain
• 4. None of the above

Question: For faithful amplification by a transistor circuit, the value of VCE should______________for silicon transistor?

• 1. Not fall below 1 V
• 2. Be zero
• 3. Be 0.2 V
• 4. None of the above

Question: Operating point represents__________________?

• 1. Values of IC and VCE when signal is applied
• 2. The magnitude of signal
• 3. Zero signal values of IC and VCE
• 4. None of the above

Question: Transistor biasing represents ______________ conditions?

• 1. a.c
• 2. d.c
• 3. both a.c. and d.c
• 4. none of the above

Question: For proper operation of the transistor, its collector should have___________________?

• 1. Proper forward bias
• 2. Proper reverse bias
• 3. Very small size
• 4. None of the above

Question: If biasing is not done in an amplifier circuit, it results in________________?

• 1. Decrease in the base current
• 2. Unfaithful amplification
• 3. Excessive collector bias
• 4. None of the above

Question: The Q of a tuned circuit refers to the property of_______________?

• 1. Sensitivity
• 2. Fidelity
• 3. Selectivity
• 4. None of the above

Question: In a parallel LC circuit, if the signal frequency is decreased below the resonant frequency, then________________?

• 1. XL decreases and XC increases
• 2. XL increases and XC decreases
• 3. Line current becomes minimum
• 4. None of the above

Question: The Q of a tuned amplifier is 50. If the resonant frequency for the amplifier is 1000kHZ, then bandwidth is __________________?

• 1. 10kHz
• 2. 40 kHz
• 3. 30 kHz
• 4. 20 kHz