The resistance of a superconductor is

A)
low
B)
zero
C)
very low
D)
None of the above

Correct Answer : Option (B) :   zero

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

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