Electronic Principles MCQ Questions & Answers

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Each section contains 100 MCQs on Electronic Principles .

Which one of the following equations most directly leads to the resistance of an ordinary household light bulb, assuming that you know the power and voltage rating?

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

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

The total capacitive reactance of a parallel capacitor circuit is:

A) equal to the sum of the individual capacitive-reactance values B) equal to the sum of the individual capacitance values C) equal to the source voltage divided by total current D) less than the capacitance value of the smallest capacitor E) None of the above

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

Thevenin theorem replaces a complicated circuit facing a load by an

A) Ideal voltage source and parallel resistor B) Ideal current source and parallel resistor C) Ideal voltage source and series resistor D) Ideal current source and series resistor E) None of the above

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

What kind of device is a diode?

A) Bilateral B) Linear C) Nonlinear D) Unipolar E) None of the above

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

Which one of the following statements applies to common, non-rechargeable flashlight batteries?

A) Common flashlight batteries are secondary wet-cell batteries B) Common flashlight batteries are primary wet-cell batteries C) Common flashlight batteries are primary dry-cell batteries D) Common flashlight batteries are secondary dry-cell batteries E) None of the above

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

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 E) None of the above

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

A step-down transformer has turns ration of 5:1. If the primary voltage is 120 Vrms, what is the secondary voltage?

A) 12 V B) 18 V C) 24 V D) 30 V E) None of the above

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

Norton's theorem replaces a complicated circuit facing a load by an

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

Which one of the following statements regarding ac circuits is correct?

A) Current and voltage are in phase through an inductor B) Current leads the voltage through an inductor C) Current lags the voltage through an inductor D) All of the above E) None of the above

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

Doubling the operating frequency of a capacitive circuit:

A) doubles the amount of a capacitive reactance B) has no effect on the capacitive reactance C) cuts the capacitive reactance in half D) multiplies the capacitive reactance by 6.28 E) None of the above

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

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Electronic Principles MCQ Questions & Answers | Computer Science