Chapter 4 Mcqs - Electrostatics

Question 1

How many electrons form 1 C charge?

Answer 1

6.25 x l0^18 electrons

Question 2

What is the electrostatic for between two charges each of 1 mC separated by distance of 1 m

Answer 2

9000 N

Question 3

if the distance between charges is doubled, then force between them becomes

Answer 3

1/4th

Question 4

If a charge of 2 C is experiences a force of 10 N in the electric field of % C charge, electric field intensity at that point is

Answer 4

5 Nc-1

Question 5

If the potential difference between plates of capacitors is reduced to half, then capacitance of the capacitor becomes

Answer 5

remains the same

Question 6

Farad is the unit of

Answer 6

capacitance

Question 7

if two capacitors are connected in series, then their capacitance

Answer 7

Decreases

Question 8

What is a vector quantity

Answer 8

electric field intensity

Question 9

If a capacitor stores charge of 10 C when potential difference of 5 V is applied, what will be charge on capacitor if 20 V are applied on it?

Answer 9

40 C

Question 10

Which of the following is touched with disc of charged electroscope but gold leaves of electroscope does not collapse?

Answer 10

Papper rod