An iron specimen has Âµr = 1000 when B = 0.3 T. If B = 0.35 T, Âµr

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

will be 1000

will be less than 1000

will be more than 1000

may be more or less than 1000

Correct Answer : Option (D) : may be more or less than 1000

Recently Updated in Materials and Components Questions

Magnetic hysteresis phenomenon is explained by

domain rotation

motion of domain walls

motion of domain walls and domain rotation

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

having a radius equal to 1 miles

having a circumference equal to 1 miles

having a circumference equal to 0 miles

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

steel

ferrite

air

powdered iron

Correct Answer : air