Capacitor And Capacitance -Multiple Choice Questions Quiz

Interactive MCQs on โ€œCapacitor And Capacitanceโ€:

Solve the following 10 questions. Only one option is correct. Click on the โ€œSubmitโ€ button when done. Click on the โ€œembedโ€ button to use this quiz on your website. Click on โ€œWhatsAppโ€ to share this quiz.

Question 1: Which of the following statements about a capacitor is correct?

(a) It stores electrical charge
(b) It generates electrical charge
(c) It converts electrical charge into energy
(d) It only works with direct current (DC)

Question 2: The unit of capacitance is:

(a) Ohm (ฮฉ)
(b) Farad (F)
(c) Henry (H)
(d) Volt (V)

Question 3: The capacitance of a capacitor depends on:

(a) The area of its plates
(b) The distance between its plates
(c) The material of its plates
(d) All of the above

Question 4: When the distance between the plates of a capacitor decreases, what happens to its capacitance?

(a) Increases
(b) Decreases
(c) Remains unchanged
(d) Becomes zero

Question 5: What happens to the capacitance of a parallel-plate capacitor when a dielectric material is inserted between its plates?

(a) Increases
(b) Decreases
(c) Remains unchanged
(d) Becomes zero

Question 6: In a DC circuit, once a capacitor is fully charged, what happens to the current flowing through it?

(a) It becomes zero
(b) It remains constant
(c) It increases indefinitely
(d) It oscillates at a high frequency

Question 7: What is the formula for calculating the capacitance (C) of a capacitor with plate area (A) and distance between plates (d)?

(a) C = A / d
(b) C = d / A
(c) C = A * d
(d) C = ฮต0 * (A /

Question 8: When an alternating current (AC) is applied to a capacitor, the current leads the voltage across the capacitor by what angle?

(a) 0 degrees
(b) 45 degrees
(c) 90 degrees
(d) 180 degrees

Question 9: What happens to the capacitance of a capacitor if the area of its plates is doubled, while the distance between the plates remains unchanged?

(a) Doubles
(b) Halves
(c) Quadruples
(d) Remains unchanged

Question 10: Which type of capacitor is commonly used for smoothing the output of power supplies?

(a) Ceramic capacitor
(b) Electrolytic capacitor
(c) Variable capacitor
(d) Tantalum capacitor