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## Q1. Positive ions are atoms that have

(A) Gained a proton

(B) Lost a proton

(C) Gained an electron

(D) Lost an electron

Answer: (D) Lost an electron

## Q2. Which one of the following statements is true?

(A) Power dissipation of a pure capacitor increases with operating frequency

(B) Power dissipation of a pure capacitor decreases with operating frequency

(C) There is no meaningful relationship between the power dissipation of a pure capacitor and its operating frequency

(D) None of the above

Answer: (C) There is no meaningful relationship between the power dissipation of a pure capacitor and its operating frequency

## Q3. What is the inductive reactance of a 0.1-H coil that is operating at 1000 Hz?

(A) 100 Ohm

(B) Less than 1 Ohm

(C) 628 Ohm

(D) 444 Ohm

Answer: (C) 628 Ohm

## Q4. A circuit has two different voltage sources that are connected in a series-opposing form. If the sources are rated at 6 V and 9 V, what is the total source voltage?

(A) 3 V

(B) 16 V

(C) 7.5 V

(D) 8 V

Answer: (A) 3 V

## Q5. A circuit has two different voltage sources that are connected in a series-aiding form. If the sources are rated at 6 V and 9 V, what is the total source voltage?

(A) 15 V

(B) 16 V

(C) 7.5 V

(D) 8 V

Answer: (A) 15 V

## Q6. Which one of the following statements is true for voltage in a series circuit?

(A) The total voltage is equal to the sum of the individual voltages in a series circuit

(B) The total voltage in a series circuit is equal to the average value of the individual voltages

(C) The total voltage of a series circuit is equal to the total current divided by the total resistance

(D) The total voltage in a series circuit is always less than the value of the smallest voltage

Answer: (A) The total voltage is equal to the sum of the individual voltages in a series circuit

## Q7. The Norton current is sometimes called the

(A) Shorted-load current

(B) Open-load current

(C) Thevenin current

(D) Thevenin voltage

Answer: (A) Shorted-load current

## Q8. Voltage is

(A) The flow of charged particles through a material

(B) The smallest electrically charged particle

(C) Trie force that causes electrons to flow

(D) The number of free electrons in an atom

Answer: (C) Trie force that causes electrons to flow

## Q9. Which one of the following statements is true for the currents in a parallel RL circuit?

(A) The total current is equal to the sum of the currents through the resistance and inductance

(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 through the resistance and inductance

(D) The total current leads the total voltage by less than 90

Answer: (C) The total current is less than the sum of the currents through the resistance and inductance

## Q10. The graph of current gain versus collector current indicates that the current gain

(A) Varies enormously

(B) Is constant

(C) Varies slightly

(D) Equals the collector current divided by the base current

Answer: (D) Equals the collector current divided by the base current

## Q11. Which one of the following statements is true?

(A) Current flows in a capacitor circuit only while ions are permitted to flow through the dielectric material

(B) Current flows in a capacitor circuit only while the charge on the plates is large enough to force the dielectric to conduct electrons

(C) Current can flow in a capacitor circuit, but not through the dielectric material itself

(D) Power returned to the circuit is always greater than the power absorbed

Answer:(C) Current can flow in a capacitor circuit, but not through the dielectric material itself

## Q12. At room temperature an intrinsic silicon crystal acts approximately like

(A) A battery

(B) A conductor

(C) An insulator

(D) A piece of copper wire

Answer: (C) An insulator

## Q13. Which one of the following statements is true for the voltage in a parallel RL circuit?

(A) The voltage always has the same amplitude and phase for every part of the circuit

(B) The total voltage is equal to the sum of the voltages across the resistance and inductance

(C) The total voltage lags the total current by less than 90

(D) The total voltages is less than the sum of the voltages across the resistance and inductance

Answer: (A) The voltage always has the same amplitude and phase for every part of the circuit

## Q14. The equivalent of 1 kV is:

(A) 1.00 V

(B) 1000 V

(C) 100 mV

(D) 1000 mV

Answer: (B) 1000 V

## Q15. The total inductive reactance of a parallel inductor circuit is:

(A) Equal to the sum of the individual inductive-reactance values

(B) Equal to the sum of the individual inductance values

(C) Equal to the source voltage divided by total current

(D) Less than the inductance value of the smallest inductor

Answer: (C) Equal to the source voltage divided by total current

## Electronic Principles MCQ – All Set

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