Which of the following is used in automatic control of street lights? - Materials and Components

Electronics and Communication Engineering (ECE) : Materials and Components - Quiz(MCQ)

Which of the following is used in automatic control of street lights?

A)

Varistor

B)

Transistor

C)

Thermistor

D)

Photoconductor

Correct Answer : Option (D) : Photoconductor

Recently Updated in Materials and Components Questions

Magnetic hysteresis phenomenon is explained by

A)

domain rotation

B)

motion of domain walls

C)

motion of domain walls and domain rotation

D)

None of the above

Correct Answer : motion of domain walls and domain rotation

A circular sphere mile is the area of cross-section of a wire

A)

having a radius equal to 1 miles

B)

having a circumference equal to 1 miles

C)

having a circumference equal to 0 miles

D)

having a diameter equal to 1 miles

Correct Answer : having a diameter equal to 1 miles

For small size high frequency coils, the most common core material is

A)

steel

B)

ferrite

C)

air

D)

powdered iron

Correct Answer : air

ECE MCQ's

Power Electronics

Digital Electronics

Analog Electronics

Microprocessors

Radio Receivers

Signals and Systems

Satellite Communication

Communication Systems

Microwave Communication

Automatic Control Systems

Materials and Components

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