Which of the following capacitor is preferred in case of single phase motor ?

A. Mica capacitor
B. Paper capacitor
C. Electrolytic capacitor
D. Ceramic capacitor

When a dielectric is placed in an electric field the field strength____________?

A. Decreases
B. Increases
C. Reduces to zero
D. Remain unchanged

Acharge which when placed in vacuum from an equal and similar charge repels with a force of 9 x 10 N, is known as_____________?

A. Milli-coulomb
B. Micro-coulomb
C. Pico-coulomb
D. Coulomb

If a third equal and similar charge is placed between two equal and similar charges, then this third charge will_____________?

A. Move out of the field of influence of the two charges
B. Remain in stable equilibrium
C. Not be in equilibrium
D. Be in unstable equilibrium

Which of the following capacitors preferred for high frequency circuits ?

A. Air capacitor
B. Electrolytic capacitor
C. Mica capacitor
D. None of the above

In order to remove static electricity from machinery___________?

A. Construct insulated cabins
B. Insulate the machinery
C. Ground the framework
D. Humidify the surroundings

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

Dielectric strength of a medium is usually expressed in____________?

A. J/mm
B. C/m2
C. Kv/mm
D. N/mm

Which is the most superior dielectric out of the following ?

A. Air
B. Glass
C. Bakelite
D. Paper

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