Capacitance and Capacitors MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Capacitance and Capacitors, a fundamental topic in the field of Basic Electrical Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Capacitance and Capacitors MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Capacitance and Capacitors mcq questions that explore various aspects of Capacitance and Capacitors problems. Each MCQ is crafted to challenge your understanding of Capacitance and Capacitors principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Basic Electrical Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Capacitance and Capacitors MCQs are your pathway to success in mastering this essential Basic Electrical Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Capacitance and Capacitors. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

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Capacitance and Capacitors MCQs | Page 17 of 21

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Q161.
If the charge in a capacitor is 4C and the energy stored in it is 4J, find the value of capacitance.

a.

2F

b.

4F

c.

8F

d.

16F

Discuss
Answer: (a).2F
Q162.
If the charge in a capacitor is 4C and the energy stored in it is 4J, calculate the voltage across its plates.

a.

2V

b.

4V

c.

8V

d.

16V

Discuss
Answer: (a).2V
Q163.
Which among the following is the correct expression for force between the plates of a parallel plate capacitor?

a.

F=epsilon*A*(V/x)²/2

b.

F=epsilon*A*(V/x)²/3

c.

F=epsilon (V/x)²/2

d.

F=epsilon (V/x)²/3

Discuss
Answer: (a).F=epsilon*A*(V/x)²/2
Q164.
When the area of cross section of the plate increases, what happens to the force between the plates?

a.

Increases

b.

Decreases

c.

Remains the same

d.

Becomes zero

Discuss
Answer: (a).Increases
Q165.
When the potential gradient increases, what happens to the force between the plates?

a.

Increases

b.

Decreases

c.

Remains the same

d.

becomes zero

Discuss
Answer: (a).Increases
Q166.
In which of the following mediums, will the force of attraction between the plates of a capacitor be greater?

a.

Air

b.

Water

c.

Does not depend on the medium

d.

Cannot be determined

Discuss
Answer: (b).Water
Q167.
A metal parallel plate capacitor has 100mm diameter and the distance between the plates is 1mm. The capacitor is placed in air. Calculate the force on each plate if the potential difference between the plates is 1kV.

a.

350N

b.

0.035kN

c.

0.035N

d.

3.35kN

Discuss
Answer: (c).0.035N
Q168.
A metal parallel plate capacitor has 100mm diameter and the distance between the plates is ‘a’ mm. The capacitor is placed in air. Force on each plate is 0.035N and the potential difference between the plates is 1kV. Find ‘a’.

a.

1m

b.

1cm

c.

10cm

d.

1mm

Discuss
Answer: (d).1mm
Q169.
A metal parallel plate capacitor has ‘a’mm diameter and the distance between the plates is 1mm. The capacitor is placed in air. Force on each plate is 0.035N and the potential difference between the plates is 1kV. Find ‘a’.

a.

10mm

b.

100mm

c.

1000m

d.

1000cm

Discuss
Answer: (b).100mm
Q170.
A metal parallel plate capacitor has 100mm diameter and the distance between the plates is 1mm. The capacitor is placed in air. Calculate the potential difference between the plates if the force on each plate is 0.035N.

a.

1kV

b.

1V

c.

2kV

d.

2V

Discuss
Answer: (a).1kV
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