Chapter 5: Electrostatics Physics Mcqs for High School - Grade 10 - Set 6

1)   A capacitor holds 0.06 C of charge when fully charged by a 9V battery. The capacitance of the capacitor is

a. 6.67 × 10-³
b. 5 × 10-³
c. 3.58 × 10-³
d. 2.68 × 10-³
Answer  Explanation 

ANSWER: 6.67 × 10-³

Explanation:
No explanation is available for this question!


2)   In the combination of parallel capacitors, the left plate of each capacitor is connected to the battery's

a. no terminal
b. both negative and positive terminals
c. negative terminal
d. positive terminal
Answer  Explanation 

ANSWER: positive terminal

Explanation:
No explanation is available for this question!


3)   A glass rod rubbed with silk thread is

a. positively charged
b. negatively charged
c. not charged
d. dual charged
Answer  Explanation 

ANSWER: positively charged

Explanation:
No explanation is available for this question!


4)   If q₁ and q₂ are the magnitudes of two charges, r is the distance between the two charges, k is the constant of proportionality then coulomb's force F between the two charges is equal to

a. k(q₁q₂)/r&sub2;
b. k(q₁q₂)/r
c. k(q₁q₂) + r&sub2;
d. k(q₁q₂) + r
Answer  Explanation 

ANSWER: k(q₁q₂)/r&sub2;

Explanation:
No explanation is available for this question!


5)   The basic property of material body due to which it attracts or repels another object is called

a. induction
b. repulsion
c. capacity
d. charge
Answer  Explanation 

ANSWER: charge

Explanation:
No explanation is available for this question!


6)   If W is the work done in moving a positive charge q from infinity to a certain point in the field, the electric potential V at this point would be equal to

a. V = W/q
b. V = q/W
c. V = W×q
d. V = W + q
Answer  Explanation 

ANSWER: V = W/q

Explanation:
No explanation is available for this question!


7)   Electric potential is a

a. unmeasurable quantity
b. vector quantity
c. scalar quantity
d. none of above
Answer  Explanation 

ANSWER: scalar quantity

Explanation:
No explanation is available for this question!


8)   The unit for electric field intensity is

a. N
b. NC-¹
c. Ns
d. n
Answer  Explanation 

ANSWER: NC-¹

Explanation:
No explanation is available for this question!


9)   To protect the leaves from the external electrical disturbance, we use

a. chords
b. capacitors
c. mercury foil
d. aluminum foil
Answer  Explanation 

ANSWER: aluminum foil

Explanation:
No explanation is available for this question!


10)   To prevent lightning from damaging tall buildings, we use

a. lightning conductors
b. lightning capacitors
c. lightning insulators
d. lightning gases
Answer  Explanation 

ANSWER: lightning conductors

Explanation:
No explanation is available for this question!


11)   3 capacitors with capacitances 5µF, 6µF and 7µF are arranged in series combination with a battery of 5V, as 1µF = 10-6F, the voltage across each capacitor is

a. 1.96V, 1.63V, 1.4V
b. 2.1V, 2.5V, 2.8V
c. 0.5V, 0.9V, 0.8V
d. 3.6V, 3.8V, 3.9V
Answer  Explanation 

ANSWER: 1.96V, 1.63V, 1.4V

Explanation:
No explanation is available for this question!


12)   The property of attraction or repulsion between substances is due to the

a. electric charges
b. neutrons
c. atoms
d. capacitors
Answer  Explanation 

ANSWER: electric charges

Explanation:
No explanation is available for this question!


13)   The medium between the two plates is air or a sheet of some insulator, such a medium is called

a. capacitor
b. plug
c. dielectric
d. adopter
Answer  Explanation 

ANSWER: dielectric

Explanation:
No explanation is available for this question!


14)   3 capacitors with capacitances 5µ F, 6µ F and 7µ F are arranged in parallel combination with a battery of 5V, as 1µ F = 10-6F, the quantity of charge on each plate of the capacitor is

a. 25µC, 30µC, 35µC
b. 15µC, 20µC, 25µC
c. 5µC, 10µC, 15µC
d. 45µC, 50µC, 55µC
Answer  Explanation 

ANSWER: 25µC, 30µC, 35µC

Explanation:
No explanation is available for this question!


15)   Due to a large quantity of electric charge which builds up in the heavy thunderclouds, the phenomenon occurs is called

a. rain
b. storm
c. heating
d. lightning
Answer  Explanation 

ANSWER: lightning

Explanation:
No explanation is available for this question!


16)   The superior type of capacitor and used in vast ranges of application is

a. ceramic capacitors
b. fixed capacitors
c. parallel plate capacitors
d. electrolytic capacitors
Answer  Explanation 

ANSWER: ceramic capacitors

Explanation:
No explanation is available for this question!


17)   A negative electric charge

a. attracts other negative charge
b. repels other negative charge
c. attracts a neutral charge
d. repels a neutral charge
Answer  Explanation 

ANSWER: repels other negative charge

Explanation:
No explanation is available for this question!


18)   What would be the energy supplied by the charge if a point charge of +2 is transferred from a point at potential 100V to a point at potential 50V?

a. 50 J
b. 100 J
c. 200 J
d. 250 J
Answer  Explanation 

ANSWER: 100 J

Explanation:
No explanation is available for this question!


19)   The force between two bodies having charges 500μC and 100μC separated by a distance of 0.5m in the air is

a. 1800 N
b. 1000 N
c. 2200 N
d. 300 N
Answer  Explanation 

ANSWER: 1800 N

Explanation:
No explanation is available for this question!


20)   The amount of work done in bringing a unit positive charge from infinity to the point in an electric field is termed as

a. electric field industry
b. electric field
c. electric potential
d. electric field intensity
Answer  Explanation 

ANSWER: electric potential

Explanation:
No explanation is available for this question!


21)   If 0.8 N is the force of repulsion between two identical charges and the charges are 0.1 m apart. The value of each charge will be

a. 8.4 × 10-⁷
b. 6.4 × 10-⁷
c. 9.4 × 10-⁷
d. 7.4 × 10-⁷
Answer  Explanation 

ANSWER: 9.4 × 10-⁷

Explanation:
No explanation is available for this question!


22)   SI unit of electric intensity is

a. C-¹
b. N-¹
c. NC-¹
d. NC-⁴
Answer  Explanation 

ANSWER: NC-¹

Explanation:
No explanation is available for this question!


23)   The capacitor capacitance can be increased or decreased by

a. turning the rotatable plates in or out
b. sliding the plates
c. changing the plates
d. changing the nature of plates
Answer  Explanation 

ANSWER: turning the rotatable plates in or out

Explanation:
No explanation is available for this question!


24)   If the voltage across the capacitor is 15V, the potential difference between its plates is

a. 7.5V
b. 15V
c. 25V
d. 10V
Answer  Explanation 

ANSWER: 15V

Explanation:
No explanation is available for this question!