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Electronic Principles problems


  • 1. Which one of the following statements is true for current flowing in a series circuit?

  • Options
  • A. The amount of current flow through each part of a series circuit can be different, depending on the resistance of each part and the amount of voltage applied to it
  • B. The total current in a series circuit is equal to the sum of the currents flowing through the individual components in the circuit
  • C. The same current flows through every part of a series circuit
  • D. The total current in a series circuit is equal to the total voltage multiplied by the total resistance
  • E. None of the above
  • Discuss
  • 2. Waveforms are graphs that show:

  • Options
  • A. frequency on the vertical axis and amplitude on the horizontal axis
  • B. amplitude on the vertical axis and frequency on the horizontal axis
  • C. amplitude on the vertical axis and the passage of time on the horizontal axis
  • D. the passage of time on the vertical axis and amplitude on the horizontal axis
  • E. None of the above
  • Discuss
  • 3. The knee voltage of a diode is approximately equal to the

  • Options
  • A. Applied voltage
  • B. Barrier potential
  • C. Breakdown voltage
  • D. Forward voltage
  • E. None of the above
  • Discuss
  • 4. In a pure inductor:

  • Options
  • A. ac current leads the voltage by 90 degree
  • B. ac current and voltage are exactly in phase
  • C. ac current lags the voltage by 90 degree
  • D. ac current is converted to dc voltage
  • E. None of the above
  • Discuss
  • 5. In an intrinsic semiconductor, the number of free electrons

  • Options
  • A. Equals the number of holes
  • B. Is less than the number of holes
  • C. Is greater than the number of holes
  • D. Impossible to say
  • E. None of the above
  • Discuss
  • 6. Which one of the following statements is true for the currents in a parallel RC circuit?

  • Options
  • A. The total current is equal to the sum of the currents for the resistance and capacitance
  • B. The current always has the same amplitude and phase for every part of the circuit
  • C. The total current is less than the sum of the currents for the resistance and capacitance
  • D. The total current. is greater than the sum of the currents for the resistance and capacitance
  • E. None of the above
  • Discuss
  • 7. When the graph of current versus voltage is a straight line, the device is referred to as

  • Options
  • A. Active
  • B. Linear
  • C. Nonlinear
  • D. Bipolar
  • E. None of the above
  • Discuss
  • 8. How many types of flow are there in a semiconductor?

  • Options
  • A. 0
  • B. 1
  • C. 2
  • D. 3
  • E. None of the above
  • Also asked in: Bank Exams

  • Discuss
  • 9. Which one of the following is a direct statement of Ohm's law?

  • Options
  • A. The voltage drop across a resistance is proportional to the value of resistance and the amount of current flowing through it
  • B. The total resistance of a parallel circuit is less than the value of the smallest resistance
  • C. The algebraic sum of voltages in a loop is equal to zero
  • D. The algebraic sum of currents entering and leaving a point is equal to zero
  • E. None of the above
  • Discuss
  • 10. The number of free electrons and holes in intrinsic semiconductor increases when the temperature

  • Options
  • A. Decreases
  • B. Increases
  • C. Stays the same
  • D. 0oC
  • E. None of the above
  • Discuss

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