Electrostatics Test 04

Total Questions: 21

1 - An electrolytic capacitor is used to store large amounts of charge at:

A ) low voltage ✅
B ) high voltage
C ) neutral
D ) positive

2 - Parallel plate consists of 2 metal plates separated by:

A ) conductor
B ) insulator ✅
C ) wooden plate
D ) plastic foam

3 - The insulator between the plates of capacitor is called:

A ) dielectric ✅
B ) capacitance
C ) resistivity
D ) permittivity

4 - Unlike charges always:

A ) Attract each other ✅
B ) Repel each other
C ) produce charge
D ) Do not affect each other

5 - Which device is used to store charge?

A ) resistor
B ) capacitor ✅
C ) dielectric
D ) fuse

6 - In series combination of capacitors, each capacitor will have same:

A ) voltage
B ) charge ✅
C ) capacitance
D ) Charge and voltage

7 - One joule per coulomb is called:

A ) volt ✅
B ) farad
C ) ampere
D ) tesla

8 - Which is the unit of energy?

A ) KWh
B ) Electron Volt
C ) Joule
D ) All of these

9 - Application of electrostatic is:

A ) Car painting
B ) Photocopying
C ) Extracting of dust
D ) All of these

10 - Which process is involved to store charge in capacitors?

A ) Rubbing
B ) Electrostatic induction ✅
C ) Conduction
D ) Electromagnetic induction

11 - The presence of fish by the other fish can be detected by

A ) Magnetic field
B ) Electric field ✅
C ) Gravitational field
D ) All of the above

12 - 1.6×10-¹⁹J=

A ) IF
B ) IC
C ) IN
D ) l e v ✅

13 - The direction of electric field lines due to positive charge is

A ) Away from the charge
B ) Towards the charge ✅
C ) Both a and b
D ) None of these

16 - A dielectric must be:

A ) resistor
B ) insulator ✅
C ) good conductor
D ) semi conductor

17 - A paper capacitor is usually available in the form of:

A ) tubes
B ) rolled foil ✅
C ) disc
D ) Plates

18 - Capacitors are mainly used for radio frequency tuning

A ) Paper Capacitor
B ) Air Capacitor ✅
C ) Mica Capacitor
D ) Electrolytic Capacitor

19 - A unit of electric charge, equal to the charge of 6.25× 10¹⁸ electrons is

A ) Electricity
B ) Coulomb ✅
C ) Electric potential
D ) Volt

20 - The electric potential energy per unit charge is called:

A ) Electric field
B ) Electric potential ✅
C ) Electric intensity
D ) All of above

21 - The substance which do not have free electrons are called:

A ) Insulators ✅
B ) Conductors
C ) Semiconductors
D ) None of these