Which inductor is used at high frequencies?
A. Cast iron cored
B. Sheet steel cored
C. Iron alloy cored
D. Ceramic cored
Answer: Option D
Related Questions on Materials and Components
For making a capacitor it is better to have a dielectric having
A. High permittivity
B. Low permittivity
C. Permittivity same as that of air
D. Permittivity which is neither high nor low
As the viscosity of a liquid increases, the relaxation time
A. Remains constant
B. Increases
C. Decreases
D. First decreases then increases
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