Electrostatics Test 02

Total Questions: 22

1 - SI unit of electric potential is:

A ) Watt
B ) Volt ✅
C ) Coulomb
D ) Joule

2 - 1 volt is equal to:

A ) JC
B ) JC-¹ ✅
C ) JC-²
D ) JC-³

3 - SI unit of capacitance is:

A ) Joule
B ) Volt
C ) Watt
D ) Farad ✅

4 - In variable capacitor, dielectric medium is:

A ) Paper
B ) Air ✅
C ) Mica
D ) Ceramic

6 - Static electricity can be generated by:

A ) Lubrication
B ) friction ✅
C ) motion
D ) Smaller the objects

9 - The value of K in SI unit is:

A ) 9× 10²⁰ Nm²C²
B ) 8×10⁹ Nm²C-²
C ) 9× 10⁹Nm²C-² ✅
D ) 10×10-⁹ NmC-²

11 - Capacitors are used to store:

A ) Current
B ) Voltage
C ) Charge ✅
D ) Resistance

12 - Electroscope is used for detecting:

A ) Current
B ) Charge ✅
C ) Voltage
D ) Resistance

16 - Positive charge can be produced by:

A ) combing in hair
B ) rubbing glass rod on silk ✅
C ) by rubbing ebonite rod on wool
D ) by rubbing glass rod wool

17 - If a neutral body is brought near to the electroscope its leave:

A ) diverge
B ) contract
C ) coverage
D ) remain in normal position ✅

18 - If the field is stronger than lines of force are to each other:

A ) far away
B ) separated
C ) closer ✅
D ) no effect

20 - The product of charge 'q' and potential difference is equal to:

A ) power
B ) force
C ) capacitance
D ) energy ✅

21 - What will be the capacitance of capacitor by joining them in parallel?

A ) increased ✅
B ) much less
C ) decrease
D ) no change