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All Electrical Engineering MCQs

Study 3,658 Electrical Engineering MCQs with correct answers and explanations.

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3081Electrical EngineeringMedium

For which of the following materials the net magnetic moment should be zero?

ADiamagnetic materials

BFerrimagnetic materials

CAntiferrimagnetic materials

DAntiferromagnetic materials

Correct answer

D. Antiferromagnetic materials

Explanation

The correct answer is Antiferromagnetic materials.

3082Electrical EngineeringMedium

When a step-input is given to an op-amp integrator, the output will be________?

AA sinusoidal wave

BA triangular wave with dc bias

CA rectangular wave

DA ramp

Correct answer

D. A ramp

Explanation

The correct answer is A ramp.

3083Electrical EngineeringMedium

A thermistor has________?

Azero temperature coefficient

Bpositive temperature coefficient

Cvariable temperature coefficient

Dnegative temperature coefficient

Correct answer

A. zero temperature coefficient

Explanation

The correct answer is zero temperature coefficient.

3084Electrical EngineeringMedium

A power supply can deliver a maximum rated current of 0.5 A at full-load output voltage of 20 V. What is the minimum load resistance that you can connect across the supply?

A40 O

B15 O

C20 O

D10 O

Correct answer

A. 40 O

Explanation

The correct answer is 40 O.

3085Electrical EngineeringMedium

Which of the following is the non-linearity caused by servomotor?

AStatic friction

BNone of the above

CBacklash

DSaturation

Correct answer

D. Saturation

Explanation

The correct answer is Saturation.

3086Electrical EngineeringMedium

Which of the following materials does not have covalent bonds?

AOrganic polymers

BMetals

CSilicon

Correct answer

B. Metals

Explanation

The correct answer is Metals.

3087Electrical EngineeringMedium

The number of Faraday tubes of flux passing through a surface in an electric field is called________?

Aelectric charge density

Bmagnetic flux density

Celectric flux density

Delectric flux

Correct answer

D. electric flux

Explanation

The correct answer is electric flux.

3088Electrical EngineeringMedium

The resistivity of water should not be less than________?

A1000 Q m

B100 Q m

C10 Q m

D2000 Q m

Correct answer

D. 2000 Q m

Explanation

The correct answer is 2000 Q m.

3089Electrical EngineeringMedium

The power dissipated in a pure capacitor is________?

Aboth (B) and (C) above

Bzero

Cproportional to value of capacitance

Dproportional to applied voltage

Correct answer

B. zero

Explanation

The correct answer is zero.

3090Electrical EngineeringMedium

Zener diode can be used as________?

Anone of the above

Bc. voltage regulator only

Cboth D.C and A.C voltage regulator

Correct answer

C. both D.C and A.C voltage regulator

Explanation

The correct answer is both D.C and A.C voltage regulator.

3081Electrical EngineeringMedium

For which of the following materials the net magnetic moment should be zero?

ADiamagnetic materials

BFerrimagnetic materials

CAntiferrimagnetic materials

DAntiferromagnetic materials

Correct answer

D. Antiferromagnetic materials

Explanation

The correct answer is Antiferromagnetic materials.

3082Electrical EngineeringMedium

When a step-input is given to an op-amp integrator, the output will be________?

AA sinusoidal wave

BA triangular wave with dc bias

CA rectangular wave

DA ramp

Correct answer

D. A ramp

Explanation

The correct answer is A ramp.

3083Electrical EngineeringMedium

A thermistor has________?

Azero temperature coefficient

Bpositive temperature coefficient

Cvariable temperature coefficient

Dnegative temperature coefficient

Correct answer

A. zero temperature coefficient

Explanation

The correct answer is zero temperature coefficient.

3084Electrical EngineeringMedium

A power supply can deliver a maximum rated current of 0.5 A at full-load output voltage of 20 V. What is the minimum load resistance that you can connect across the supply?

A40 O

B15 O

C20 O

D10 O

Correct answer

A. 40 O

Explanation

The correct answer is 40 O.

3085Electrical EngineeringMedium

Which of the following is the non-linearity caused by servomotor?

AStatic friction

BNone of the above

CBacklash

DSaturation

Correct answer

D. Saturation

Explanation

The correct answer is Saturation.

3086Electrical EngineeringMedium

Which of the following materials does not have covalent bonds?

AOrganic polymers

BMetals

CSilicon

Correct answer

B. Metals

Explanation

The correct answer is Metals.

3087Electrical EngineeringMedium

The number of Faraday tubes of flux passing through a surface in an electric field is called________?

Aelectric charge density

Bmagnetic flux density

Celectric flux density

Delectric flux

Correct answer

D. electric flux

Explanation

The correct answer is electric flux.

3088Electrical EngineeringMedium

The resistivity of water should not be less than________?

A1000 Q m

B100 Q m

C10 Q m

D2000 Q m

Correct answer

D. 2000 Q m

Explanation

The correct answer is 2000 Q m.

3089Electrical EngineeringMedium

The power dissipated in a pure capacitor is________?

Aboth (B) and (C) above

Bzero

Cproportional to value of capacitance

Dproportional to applied voltage

Correct answer

B. zero

Explanation

The correct answer is zero.

3090Electrical EngineeringMedium

Zener diode can be used as________?

Anone of the above

Bc. voltage regulator only

Cboth D.C and A.C voltage regulator

Correct answer

C. both D.C and A.C voltage regulator

Explanation

The correct answer is both D.C and A.C voltage regulator.