Electrostatics Test 03

Total Questions: 20

2 - In electrostatic all charges are in:

A ) the same direction
B ) opposite direction
C ) motion
D ) static state ✅

3 - 1μC =

A ) 10-⁶ C ✅
B ) 10-¹²C
C ) 10-¹⁰C
D ) 10-¹¹C

4 - Which type of capacitor is cylindrical in shape?

A ) Paper capacitor ✅
B ) mica capacitor
C ) variable capacitor
D ) plates capacitor

5 - Each volt of lightening contains energy:

A ) 4×10⁶ joules
B ) 1000 joules
C ) 1000 million joules ✅
D ) 10 joules

6 - Capacitors that are used in resonant circuits that tune radios to particular frequencies, such circuits are called:

A ) series circuits
B ) filter circuits ✅
C ) parallel circuits
D ) AC circuits

8 - If there is divergence of leaves by touching a body with electroscope then the body is:

A ) semi conductor
B ) neutral
C ) charge body ✅
D ) insulator

9 - In fixed capacitor dielectric used is:

A ) paper
B ) metal
C ) mica
D ) paper & mica ✅

10 - Instrument used for detecting and testing the nature of charge on a body is called:

A ) incubator
B ) spectroscope
C ) voltmeter
D ) electroscope ✅

11 - The phenomena used in capacitor is:

A ) electrostatic induction ✅
B ) induced current
C ) electric field
D ) electroscope

12 - The phenomena which is used in applying points on the surface of different articles is called:

A ) electroplating
B ) electroscope
C ) electrostatic induction ✅
D ) electrolytes

13 - The substance in which electric current flows easily is called:

A ) transistor
B ) semi conductor
C ) insulator
D ) conductor ✅

14 - Study of charges at rest is called:

A ) acoustics
B ) electrostatics ✅
C ) electronics
D ) electricity

15 - Coulomb's force is given by:

A ) F = k
B ) F = kq1q2
C ) F=kq1q2r²
D ) F= kq1q2/r² ✅

16 - Electroscope can also be charged by the process of:

A ) electrostatics
B ) electricity
C ) convection
D ) conduction ✅

17 - F =

A ) qE ✅
B ) q-E
C ) q/ E
D ) q + E

18 - Electric field is weak when:

A ) lines are far a part ✅
B ) lines are close together
C ) no lines are present
D ) lines are directed outside

19 - Which is a major cause of fires and explosions at many places?

A ) match sticks
B ) bombs
C ) static electricity ✅
D ) magnetism

20 - Which can be used to distinguish between insulators and conductors?

A ) electricity
B ) telescope
C ) temperature
D ) electroscope ✅