Electronics

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Q. What is the main advantage of using a thyristor over a standard diode?
  • A. Higher current rating
  • B. Ability to control power
  • C. Lower forward voltage drop
  • D. Faster switching speed
Q. What is the main advantage of using AC over DC for power transmission?
  • A. AC is easier to generate
  • B. AC can be easily transformed to higher voltages
  • C. AC is safer
  • D. AC is more efficient in small circuits
Q. What is the main advantage of using Alternating Current (AC) for power distribution?
  • A. Easier to convert to DC
  • B. Can be transmitted over long distances with less loss
  • C. More efficient in small devices
  • D. Safer for household use
Q. What is the main advantage of using Alternating Current (AC) for power transmission?
  • A. Easier to convert to different voltages
  • B. More efficient at low voltages
  • C. Safer for household use
  • D. Requires less insulation
Q. What is the main advantage of using an instrumentation amplifier?
  • A. High input impedance and low output impedance
  • B. Ability to amplify small differential signals in the presence of noise
  • C. Simple design and low cost
  • D. Wide bandwidth
Q. What is the main advantage of using an integrator circuit with an op-amp?
  • A. It provides a constant output voltage
  • B. It can convert a square wave to a triangular wave
  • C. It amplifies high-frequency signals
  • D. It filters out low-frequency noise
Q. What is the main advantage of using BJTs over FETs?
  • A. Higher input impedance
  • B. Higher current gain
  • C. Lower power consumption
  • D. Better thermal stability
Q. What is the main advantage of using FETs in semiconductor memory?
  • A. Higher power consumption
  • B. Lower input impedance
  • C. Higher input impedance
  • D. More complex fabrication
Q. What is the main advantage of using PLDs over fixed logic devices?
  • A. Lower cost
  • B. Higher speed
  • C. Flexibility in design
  • D. Simplicity of use
Q. What is the main characteristic of a depletion-mode FET?
  • A. It is normally on
  • B. It is normally off
  • C. It has a negative resistance
  • D. It requires a positive gate voltage to conduct
Q. What is the main characteristic of a FET?
  • A. Current-controlled device
  • B. Voltage-controlled device
  • C. Power-controlled device
  • D. Temperature-controlled device
Q. What is the main characteristic of a P-N junction in semiconductor physics?
  • A. It allows current to flow in both directions
  • B. It creates a depletion region
  • C. It acts as a capacitor
  • D. It has infinite resistance
Q. What is the main characteristic of a Zener diode?
  • A. It can amplify signals
  • B. It allows current to flow in both directions
  • C. It maintains a constant voltage across it
  • D. It is used for switching applications
Q. What is the main difference between NPN and PNP transistors?
  • A. NPN transistors have a positive collector
  • B. PNP transistors have a negative emitter
  • C. NPN transistors use electrons as charge carriers
  • D. PNP transistors are always off
Q. What is the main disadvantage of using a transformer?
  • A. High cost
  • B. Size and weight
  • C. Limited frequency response
  • D. Low efficiency
Q. What is the main function of a zener diode?
  • A. To rectify AC signals
  • B. To allow current in one direction only
  • C. To provide voltage regulation
  • D. To amplify signals
Q. What is the main purpose of a digital-to-analog converter (DAC)?
  • A. To convert analog signals to digital
  • B. To amplify analog signals
  • C. To convert digital signals to analog
  • D. To filter digital signals
Q. What is the main purpose of an operational amplifier (op-amp) in AC circuits?
  • A. To convert AC to DC
  • B. To amplify AC signals
  • C. To rectify AC signals
  • D. To filter AC signals
Q. What is the main purpose of an operational amplifier?
  • A. To amplify current
  • B. To amplify voltage
  • C. To convert AC to DC
  • D. To switch signals
Q. What is the output impedance of an ideal op-amp?
  • A. Zero ohms
  • B. Infinite ohms
  • C. 100 ohms
  • D. 1k ohms
Q. What is the output of a binary AND operation for inputs 1 and 0?
  • A. 1
  • B. 0
  • C. 2
  • D. 1.5
Q. What is the output of a full-wave rectifier when given an AC input?
  • A. A pure AC signal
  • B. A pulsating DC signal
  • C. A constant DC voltage
  • D. An amplified AC signal
Q. What is the output of a half-wave rectifier when the input is a sine wave?
  • A. A sine wave
  • B. A square wave
  • C. A pulsating DC signal
  • D. A constant DC signal
Q. What is the output of an inverting op-amp if the input voltage is 1V and the feedback resistor is twice the input resistor?
  • A. 0.5V
  • B. 1V
  • C. 2V
  • D. -2V
Q. What is the output state of a D flip-flop when the clock signal transitions from low to high?
  • A. It holds the previous state
  • B. It resets to zero
  • C. It takes the value of the D input
  • D. It toggles its state
Q. What is the output state of a JK flip-flop when both J and K inputs are high?
  • A. Set state
  • B. Reset state
  • C. Toggle state
  • D. No change
Q. What is the output voltage of a non-inverting op-amp with a gain of 10 and an input voltage of 1V?
  • A. 1V
  • B. 5V
  • C. 10V
  • D. 0.1V
Q. What is the output voltage of an ideal op-amp when the input voltage is zero?
  • A. Zero volts
  • B. Equal to the supply voltage
  • C. Equal to the input voltage
  • D. Infinite volts
Q. What is the output voltage of an operational amplifier when the input voltage is zero and the op-amp is powered?
  • A. 0V
  • B. Positive saturation voltage
  • C. Negative saturation voltage
  • D. Depends on the circuit configuration
Q. What is the primary advantage of using parallel circuits in electronic devices?
  • A. Increased voltage
  • B. Increased current capacity
  • C. Redundancy and reliability
  • D. Simplicity in design
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