Capacitor And Capacitance -Multiple Choice Questions Quiz

Interactive MCQs on “Capacitor And Capacitance”:

Solve the following 10 questions. Only one option is correct. Click on the “Submit” button when done. Click on the “embed” button to use this quiz on your website. Click on “WhatsApp” 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 (Ω)
(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 = ε0 * (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