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Q: When the ac base voltage in a CE amplifier circuit is too high, the ac emitter current is
- A: distorted
- B: constant
- C: alternating
- D: zero
Q: In all base driver amplifiers
- A: ac collector voltage is in phase with ac base voltage
- B: ac collector voltage is 180° out of phase with ac base voltage
- C: ac emitter voltage is 180° out of phase with ac base voltage
- D: none
Q: If a certain multiplexer can switch one of 32 data inputs to its output. How many different inputs does this MUX have?
- A: 30 data inputs & 5 select inputs
- B: 32 data inputs and 5 select inputs
- C: 32 data inputs and 4 select inputs
- D: None
Q: Whenever load is coupled class A amplifier through transformer efficiency
- A: Decreases
- B: Increases
- C: Nothing happen
- D: None
Q: In a transistor CE mode, VCC = +30 V. If the transistor is in cut off region, VCE = ?
- A: 10 V
- B: +20 V
- C: +30 V
- D: 0 V
Q: The order of input resistance in 741 OPAMP is
- A: 103W
- B: 105W
- C: 106W
- D: 1 to 104 W
Q: For the below circuit , Input resistance Rid will be
- A: 2R1+ R2
- B: 2R1
- C: 2 (R1+ R2)
- D: Infinity
Q: When MOSFET switch is its on-state it is equivalent to
- A: capacitor
- B: resistor
- C: inductor
- D: battery
Q: A voltage with square waveform having values of +5V and 0V is
- A: digital signal
- B: current signal
- C: wifi signal
- D: analog signal
Q: In a transistor switch, the voltage change from base-to-emitter which is adequate to accomplish the switching is only about
- A: 0.5V
- B: 0.4V
- C: 0.1V
- D: 0.9V