Computer Programming MCQs

5739 MCQs  (Page 163 of 574)

A capacitor consists of two____________?
A. Ceramic plates and one mica disc
B. Insulators separated by a dielectric
C. Silver-coated insulators
D. Conductors separated by an insulator
What will happen to an insulating medium if voltage more than the breakdown voltage is applied on it__________ ?
A. It will become magnetic
B. It will melt
C. It will get punctured or cracked
D. Its molecular structure will get changed
Dielectric strength of medium____________?
A. Increases with rise in temperature
B. Increases with mositure content
C. Is same for all insulating materials
D. None of the above
In a capacitor, the electric charge is stored in_________?
A. Metal plates
B. Dielectric
C. Dielectric as well as metal plates
D. None of the above
To prevent the generation of static charges on rubber or flat leather__________?
A. Surface is mositened
B. Conductive dressing is done
C. Oil compound dressing is done
D. Talcum powder is sprayed on the surface
A region around a stationary electric charge has__________?
A. An electric field
B. A magnetic field
C. Both a. and (6)
D. None of the above