MDCAT 2026 inSee plans
Free mock test

Electrostatics MCQs for MDCAT

20 Electrostatics questions from real MDCAT past papers (2025, 2024, 2023), each with the correct answer and a written explanation.

20 questionsPhysics

Practice questions

20 more questions in this chapter

Unlock the full answer key and explanations

Get every question in Electrostatics MCQs - plus every other paper, unlimited full-length mocks, and the most-repeated MCQ packs.

Unlock everything from Rs 1,000/month

Or buy a single mock test for Rs 300 without a subscription.

1Physicselectric field scaling

Q128. The electric field at a point due to two equal and opposite charges is 100 N/C. If the magnitude of each charge is doubled then the electric field at that point becomes:

  1. A.a) 50 N/C
  2. B.b) 100 N/C
  3. C.c) 200 N/C
  4. D.d) 400 N/C

Answer and explanation locked

2Physicsdielectric effect

Q129. If a plastic sheet of relative permittivity 2.5 is inserted between two-point charges placed in vacuum, then the electrostatic force between them:

  1. A.a) Increases by a factor of 2.5
  2. B.b) Decreases by a factor of 2.5
  3. C.c) Increases by a factor of 5
  4. D.d) Decreases by a factor of 5

Answer and explanation locked

3Physicssurface charge and field

Q141. If the surface charge density of an infinite sheet increases by 25%, the electric field intensity:

  1. A.a) Increases by 25%
  2. B.b) Increases by 50%
  3. C.c) Decreases by 25%
  4. D.d) Remains the same

Answer and explanation locked

4Physicselectric field between charges

Q159. For two equal positive charges, the electric field weakest?

  1. A.Midway between them
  2. B.Along the perpendicular bisector
  3. C.Close to either charge
  4. D.At infinity

Answer and explanation locked

5Physicscoulombs law scaling

Q161. If the distance between two charges is halved and magnitude of charges are also doubled, then the force between these charges becomes:

  1. A.two times
  2. B.four times
  3. C.eight times
  4. D.sixteen times

Answer and explanation locked

6Physicscoulombs law

146. The Coulomb's law states

  1. A.Force,between two point charges is inversely proportional to the product of the charges and directly proportional to the square of the distance between them
  2. B.Force between two point charges is directly proportional to the product of the charges and inversely proportional to the square of the distance between them
  3. C.Force between two point charges is directly proportional to the sum of the charges and inversely proportional to the square of the distance between them
  4. D.Force between two point charges is directly proportional to the product of the charges and the square of the distance between them

Answer and explanation locked

7Physicselectric potential

147. The formula V = W / qo represents

  1. A.Electric intensity
  2. B.Electric power
  3. C.Electric potential
  4. D.Electric field gradient

Answer and explanation locked

8Physicscapacitance unit

148. The S.I unit of capacitance of a capacitor is:

  1. A.Coulomb
  2. B.Volt
  3. C.Farad
  4. D.Ampere

Answer and explanation locked

9Physicselectric field between plates

149.Electric intensity between two oppositely charge plates in the middle region is_______

  1. A.Non-uniform
  2. B.Uniform
  3. C.Cannot be predicted
  4. D.Variable

Answer and explanation locked

10Physicselectric potential

150.Find potential difference in moving 2 C charge which requires 600J of work between two points.

  1. A.1200V
  2. B.300V
  3. C.150V
  4. D.2400V

Answer and explanation locked

11Physicselectric forces

151.Which one of the following Is NOT a feature of electric forces?

  1. A.They act on charges
  2. B.They act on masses
  3. C.They can be attractive
  4. D.They can be repulsive

Answer and explanation locked

12Physicsgausss law

Electric intensity due to charge distributions are calculated using which following law?

  1. A.Ohm’s law
  2. B.Faraday’s law
  3. C.Gauss’s law
  4. D.Ampere’s law

Answer and explanation locked

13Physicscapacitance dependence

The capacitance of capacitor does not depend on:

  1. A.Area of plates
  2. B.Medium
  3. C.Distance between plates
  4. D.Thickness of plates

Answer and explanation locked

14Physicsunit of potential difference

The SI unit of potential difference is:

  1. A.Volt
  2. B.Coulomb
  3. C.Watt
  4. D.eV

Answer and explanation locked

15Physicselectric potential definition

Electric potential is defined as:

  1. A.Work per unit charge
  2. B.Force per unit charge
  3. C.Power per unit charge
  4. D.Force

Answer and explanation locked

16Physicspotential difference work charge

What is the potential difference between two points in an electric field if it takes 600 J of energy to move a charge of 2 C between these two points?

  1. A.1200 J
  2. B.800 J
  3. C.300 J
  4. D.0 J

Answer and explanation locked

17Physicslimitations of gauss law

Gauss law cannot be used to find which of the following quantity?

  1. A.Electric field intensity
  2. B.Electric flux density
  3. C.Charge
  4. D.Permittivity

Answer and explanation locked

18Physicscomparison gravitational electrostatic

Which one of the following statements is true?

  1. A.electrostatic force obeys inverse square law while gravitational force does not
  2. B.both gravitational force and electrostatic force are repulsive in nature
  3. C.gravitational force is much weaker than electrostatic force
  4. D.Both electrostatic force and gravitational force don't obey inverse square law

Answer and explanation locked

19Physicscoulomb constant dependence

The Coulomb's constant k depends upon:

  1. A.nature of medium
  2. B.system of units
  3. C.types of charge
  4. D.nature of medium and system of units

Answer and explanation locked

20Physicsmotion in uniform electric field

A charged particle is moving in a uniform electric field. For the motion of the particle due to the field, which quantity has a constant non-zero value?

  1. A.acceleration
  2. B.displacement
  3. C.rate of change of acceleration
  4. D.velocity

Answer and explanation locked

How Electrostatics is examined

Electrostatics sits in the official PMDC Physics curriculum, the document that defines what can and cannot appear in the 2026 paper. Everything on this page is tagged against that curriculum rather than against a chapter list invented for a website, which is why a chapter here matches the chapter your textbook and your teacher use.

Physics carries 36 of the 180 questions in the real paper - 20% of your MDCAT score, and the MDCAT is half your merit aggregate. PMDC does not publish how those 36questions are split across chapters, so no honest page can tell you “expect four from Electrostatics”. What the archive can tell you is what actually appeared: 20 Electrostatics questions out of the 234 Physics questions digitised so far.

Work through them with the explanations rather than checking answer letters. The explanation says why the other three options are wrong, and distractors get reused across years far more reliably than whole questions do.

Frequently asked questions

How many Electrostatics MCQs are on this page?
20, drawn from 4 past papers - the 2023, 2024, 2025 papers. Every one is transcribed from the real paper rather than written to look like a past paper question, and each carries the correct answer with a written explanation. 0 of them are readable in full without an account.
Is Electrostatics in the MDCAT 2026 syllabus?
Yes. Electrostatics is a chapter of the official PMDC Physics curriculum, and PMDC has confirmed the 2026 syllabus is unchanged from the 2025 revision, so everything on this page is still examinable.
How many Electrostatics questions come up in the MDCAT?
PMDC does not publish a per-chapter breakdown, so nobody can tell you a reliable number - be careful with pages that do. What can be counted is the paper as a whole: Physics is 36 of the 180 questions, and 9% of the Physics questions in our archive so far have come from Electrostatics.
Do these Electrostatics MCQs come with explanations?
Yes, and they are written from scratch rather than copied. An answer letter tells you nothing about why the other three options are wrong, which is the part that transfers to the next question. The first 0 questions of every paper are free to read in full; the rest need a pass.