Electronic Principles MCQ Questions & Answers

81

What is the power dissipation of a resistance that has 24 V dropped across it and 0.25 A flowing through it?

A) 3 W B) 6 W C) 64 W D) 122 W E) None of the above

Discuss

Answer & Solution

Answer: Option B

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

82

Which one of the following kinds of materials has the highest permeability?

A) A diamagnetic material B) A ferromagnetic material C) A paramagnetic material D) All of the above E) None of the above

Discuss

Answer & Solution

Answer: Option B

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

83

Inductive reactance is measured in units of:

A) volts per second B) amperes per second C) Ohm D) henrys E) None of the above

Discuss

Answer & Solution

Answer: Option C

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

84

What is the difference between the kinds of charges for an electron and a proton?

A) An electron has a positive charge and a proton has no charge B) An electron has a positive charge and a proton has a negative charge C) An electron has a negative charge and a proton has a positive charge D) An electron has a negative charge and a proton has no charge E) None of the above

Discuss

Answer & Solution

Answer: Option C

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

85

An ideal voltage source has

A) Zero internal resistance B) Infinite internal resistance C) A load dependent voltage D) A load-dependent current E) None of the above

Discuss

Answer & Solution

Answer: Option A

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

86

A transistor has how many doped regions?

A) 1 B) 2 C) 3 D) 4 E) None of the above

Discuss

Answer & Solution

Answer: Option C

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

87

The voltage across a 1N4001 is 0.93V when the current is 1A. What is the power dissipation of the diode for these values?

A) 0.93 W B) 0.93 V C) 1:00 AM D) 9.3 W E) None of the above

Discuss

Answer & Solution

Answer: Option A

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

88

A loadstone is:

A) a natural magnet B) a temporary magnet C) an artificial magnet D) a paramagnetic alloy E) None of the above

Discuss

Answer & Solution

Answer: Option A

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

89

Which one of the following phrases most accurately describes a purely capacitive circuit?

A) Resistances provide the only opposition to current flow B) Capacitive reactance provides the only opposition to current flow C) The ac voltage leads the current by 90 degree D) Combinations of resistance and capacitive reactance provide any opposition to current flow E) None of the above

Discuss

Answer & Solution

Answer: Option B

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

90

The saturation point is approximately the same as

A) cutoff point B) lower end of the load line C) upper end of the load line D) infinity E) None of the above

Discuss

Answer & Solution

Answer: Option C

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

Electronic Principles MCQ Questions & Answers | Computer Science