current
voltage
potential gradient
charge
Answer is Right!
Answer is Wrong!
Detailed SolutionThe total deficiency or excess of electrons in a body is known as
Electrostatics
32. Paper condenser is
always polarised
usually of fixed value
electrolytic condenser
a variable condenser
Answer is Right!
Answer is Wrong!
33. The potential gradient across the material of low permittivity is than across the material of high permittivity.
smaller
greater
both (A) and (B)
none of the above
Answer is Right!
Answer is Wrong!
34. The capacitance of a capacitor is not affected by
distance between plates
area of plates
thickness of plates
all of the above
Answer is Right!
Answer is Wrong!
Detailed SolutionThe capacitance of a capacitor is not affected by
35. The capacity of capacitor bank used in power factor correction is expressed in terms of
kW
kVA
kVAR
volts
Answer is Right!
Answer is Wrong!
36. The direction of electric field due +0 positive charge is .
away from the charge
towards the charge
both (A) and (B)
none of the above
Answer is Right!
Answer is Wrong!
Detailed SolutionThe direction of electric field due +0 positive charge is .
37. The inverse of capacitance is called
reluctance
conductance
susceptance
elastance
Answer is Right!
Answer is Wrong!
38. The lines of force due to charged particles are
always straight
always curved
sometimes curved
none of the above
Answer is Right!
Answer is Wrong!
Detailed SolutionThe lines of force due to charged particles are
39. To prevent the generation of static charges on rubber or flat leather
surface is moistened
conductive dressing is done
oil compound dressing is done
talcum powder is sprayed on the surface
Answer is Right!
Answer is Wrong!
Detailed SolutionTo prevent the generation of static charges on rubber or flat leather
40. Which is the most superior dielectric out of the following ?
Air
Glass
Bakelite
Paper
Answer is Right!
Answer is Wrong!
Detailed SolutionWhich is the most superior dielectric out of the following ?