Electronic Principles MCQ Questions & Answers

91

What is the impedance of a circuit composed of a 100 ohm resistor connected in parallel with an inductor that has a reactance of 200 W?

A) 77.7 ohm B) 89.3 ohm C) 88.8 ohm D) 224 ohm E) None of the above

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Answer & Solution

Answer: Option B

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92

The nucleus of the copper atom contains how many protons?

A) 1 B) 4 C) 18 D) 29 E) None of the above

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Answer: Option D

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93

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 E) None of the above

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Answer: Option A

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94

A basic capacitor is composed of:

A) two conductors separated by a dielectric B) two dielectrics separated by a conductor C) two coils separated by a dielectric D) two coils separated by a conductor E) None of the above

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Answer: Option A

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95

Which one of the following devices is most often used for measuring electrical potential difference?

A) Voltmeter B) Ohmmeter C) Ammeter D) Wattmeter E) None of the above

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Answer: Option A

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96

Which one of the following equations most directly determines the power dissipation of a resistance when you know the voltage drop and amount of resistance?

A) P = I²R B) P = IE C) P = E²/R D) I = P/E E) None of the above

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Answer: Option C

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97

The equivalent of 1 megohms is:

A) 1 k ohm B) 100,000 ohm C) one-millionth of an ohm D) one million ohms E) None of the above

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Answer: Option D

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98

Which one of the following equations most directly determines the amount of current flowing through a resistor when you know the value of the resistor and the voltage drop across it?

A) E = PR B) E = I²R C) I = E/R D) I = ER E) None of the above

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Answer: Option C

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99

Suppose a current source has an Ideal current of 10 mA and an internal resistance of 20 MW. For what values of load resistance will the current source appear stiff?

A) 20 k Ohm or more B) 200 k Ohm or less C) 200 k Ohm or more D) 20 km or less E) None of the above

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Answer: Option B

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100

If the current gain is 200 and the collector current is 100 mA, the base current is

A) 2 mA B) 0.5 mA C) 2:00 AM D) 200 A E) None of the above

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Answer & Solution

Answer: Option B

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Electronic Principles MCQ Questions & Answers | Computer Science