The charges produced on objects by rubbing them together or by pressing and pulling them apart, are called…….
a) static charge
b) moving charge
c) silent charge
d) all of these
The phenomenon of producing static charges on objects is called……….
a) static charge
b) moving charge
c) silent charge
d) static electricity
Which of the following is caused by static electricity?
a) a stove getting hot when it is turned on
b) a magnet being attracted to a refrigerator
c) a light bulb coming on when a switch is turned on
d) a lightning strike during a storm
A device which is used for removing
unwanted solid or liquid particles from gases by the application of principle
of electrostatics, is called…………
a) electrostatic precipitator
b) electrostatic participation
c) electrostatic perception
d) electrostatic position
The electric current which flows in one direction only, is called………..
a) direct current
b) alternative current
c) both a and b
d) none of these
The electric current that regularly charges its direction, is called……….
a) direct current
b) alternative current
c) both a and b
d) none of these
