# Chapter 5: Electrostatics Physics Mcqs for High School - Grade 10 - Set 1

1)   To relieve the discomfort of allergy sufferers in homes, we use

a. vacuum cleaner
b. electrostatic air cleaner
c. wind cleaner
d. none of above
 Answer  Explanation ANSWER: electrostatic air cleaner Explanation: No explanation is available for this question!

2)   Coulomb's law is only true for point charges whose sizes are

a. medium
b. very large
c. very small
d. large
 Answer  Explanation ANSWER: very small Explanation: No explanation is available for this question!

3)   As per Coulomb's law, the force of attraction or repulsion between two point charges is directly proportional to the

a. sum of the magnitude of charges
b. square of the distance between them
c. product of the magnitude of charges
d. cube of the distance
 Answer  Explanation ANSWER: product of the magnitude of charges Explanation: No explanation is available for this question!

4)   If F is the force acting on the test charge qo, the electric field intensity E would be given by

a. E = F - q₀
b. E = F/q₀
c. E = F + q₀
d. E = q₀/F
 Answer  Explanation ANSWER: E = F/q₀ Explanation: No explanation is available for this question!

5)   The ability of a capacitor to store charge depends upon

a. area of plates
b. distance between plates
c. type of dielectric used
d. all of above
 Answer  Explanation ANSWER: all of above Explanation: No explanation is available for this question!

6)   In the combination of capacitors in series, the capacitors are connected

a. parallel
b. side by side
c. up and down
d. none of above
 Answer  Explanation ANSWER: side by side Explanation: No explanation is available for this question!

7)   The coulomb's force between the 2 point charges 10µC and 5µC placed at a distance of 150cm is

a. 0.2 N
b. 0.5 N
c. 2 N
d. 10 N
 Answer  Explanation ANSWER: 0.2 N Explanation: No explanation is available for this question!

8)   If 5 J of work is required to shift 10 C charge from one place to another then the potential difference is

a. 0.5 V
b. 2 V
c. 5 V
d. 10 V
 Answer  Explanation ANSWER: 0.5 V Explanation: No explanation is available for this question!

9)   The value of k in coulomb's law depends upon

a. magnitude of charges
b. distance between charges
c. medium between two charges
d. all of above
 Answer  Explanation ANSWER: medium between two charges Explanation: No explanation is available for this question!

10)   A device which stores charge is called

a. Resistor
b. Inductor
c. capacitor
d. transistor
 Answer  Explanation ANSWER: capacitor Explanation: No explanation is available for this question!

11)   The resonant circuits that tune radios to particular frequencies are called

a. plate circuits
c. filter circuits
d. fiber circuits
 Answer  Explanation ANSWER: filter circuits Explanation: No explanation is available for this question!

12)   The property of material due to which it attracts or repels other objects is

a. friction
b. velocity
c. current
d. charge
 Answer  Explanation ANSWER: charge Explanation: No explanation is available for this question!

13)   In electrostatic air cleaner, air mixed with dust and pollen enters device across

a. positively charged mesh
b. negatively charged mesh
c. neutral mesh
d. dual charged mesh
 Answer  Explanation ANSWER: positively charged mesh Explanation: No explanation is available for this question!

14)   If the medium between two charges is air, then the value of constant k in SI units will be

a. 5 × 10⁹ Nm²C-²
b. 7 × 10⁹ Nm²C-²
c. 8 × 10⁹ Nm²C-²
d. 9 × 10⁹ Nm²C-²
 Answer  Explanation ANSWER: 9 × 10⁹ Nm²C-² Explanation: No explanation is available for this question!

15)   1 micro farad (1µF) is equal to

a. 1×10-⁹F
b. 1×10-¹²F
c. 1×10-⁶F
d. 1×10-¹⁰F
 Answer  Explanation ANSWER: 1×10-⁶F Explanation: No explanation is available for this question!

16)   Plastic rod rubbed with fur and glass rod rubbed with silk

a. repel each other
b. mix up with each other
c. attract each other
d. none of above
 Answer  Explanation ANSWER: attract each other Explanation: No explanation is available for this question!

17)   Electric intensity being a force is a

a. unmeasurable quantity
b. vector quantity
c. scalar quantity
d. basic quantity
 Answer  Explanation ANSWER: vector quantity Explanation: No explanation is available for this question!

18)   If the body is positively or negatively charged the leaves of electroscope will

a. diverge
b. converge
c. stay still
d. shrink
 Answer  Explanation ANSWER: diverge Explanation: No explanation is available for this question!

19)   The amount of work done in bringing unit positive charge from infinity to a point in electric field is called

a. coulomb's force
b. electrostatic force
c. electric potential
d. resistance
 Answer  Explanation ANSWER: electric potential Explanation: No explanation is available for this question!

20)   As per Coulomb's law, the force of attraction or repulsion between two point charges is inversely proportional to the

a. sum of the magnitude of charges
b. square of the distance between them
c. product of the magnitude of charges
d. cube of the distance
 Answer  Explanation ANSWER: square of the distance between them Explanation: No explanation is available for this question!