Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : The outer body of an aircraft is made of metal which protects persons sitting inside from lightning strikes. Reason (R) : The electric field inside the cavity enclosed by a conductor is zero. In the light of the above statements, choose the most appropriate answer from the options given below:

Both (A) and (R) are correct and (R) is the correct explanation of (A)

Both (A) and (R) are correct but (R) is not the correct explanation of (A)

(A) is correct but (R) is not correct

(A) is not correct but (R) is correct

A dipole with two electric charges of 2 µC magnitude each, with separation distance 0.5 µm, is placed between the plates of a capacitor such that its axis is parallel to an electric field established between the plates when a potential difference of 5 V is applied. Separation between the plates is 0.5 mm. If the dipole is rotated by 30° from the axis, it tends to realign in the direction due to a torque. The value of torque is:

5×10^{-9} \text{N} \cdot \text{m}

2.5×10^{-9} \text{N} \cdot \text{m}

2.5×10^{-12} \text{N} \cdot \text{m}

5×10^{-3} \text{N} \cdot \text{m}

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R) . Assertion (A) : Net dipole moment of a polar linear isotropic dielectric substance is not zero even in the absence of an external electric field. Reason (R) : In the absence of an external electric field, the different permanent dipoles of a polar dielectric substance are oriented in random directions. In the light of the above statements, choose the most appropriate answer from the options given below :

(A) is not correct but (R) is correct

Both (A) and (R) are correct and (R) is the correct explanation of (A).

Both (A) and (R) are correct but (R) is not the correct explanation of (A)

(A) is correct but (R) is not correct

The vehicles carrying inflammable fluids usually have metallic chains touching the ground:

To conduct excess charge due to air friction to ground and prevent sparking

To protect tyres from catching dirt from ground

Electrostatics — JEE Main Previous Year Questions

244 solved PYQs · 2016–2026 · Physics

Solved PYQs: 244
Years covered: 2016–2026
Avg / year: ~22
Subject: Physics

How many JEE Main questions come from Electrostatics?

Electrostatics has contributed 244 questions to Joint Entrance Examination (Main) papers between 2016 and 2026 — an average of about 22 questions a year. That count is measured from EByAi’s bank of 55,289 JEE Main questions, not estimated from a syllabus. Every one of the 244 questions carries a written, step-by-step solution, and each is tagged to Electrostatics within Physics, so you can drill this chapter across every year at once instead of hunting through paper PDFs. Practising a chapter’s full PYQ history is the fastest way to learn the patterns examiners reuse.

Sample Electrostatics questions from real JEE Main papers

These are 5 real questions from the bank — exactly as asked, with the answer one tap away. All 244 Electrostatics questions (with full written solutions) are available in practice.

Question 1 · JEE Main 2026
Three small identical bubbles of water having the same charge on each coalesce to form a bigger bubble. Then the ratio of the potentials on one initial bubble and that on the resultant bigger bubble is :
1. (A) $1 : 3^{2/3}$
2. (B) $3^{2/3} : 1$
3. (C) $1 : 3^{1/3}$
4. (D) $1 : 2^{2/3}$
Show answerAnswer
$Answer: (A) 1 : 3^{2/3}$
Question 2 · JEE Main 2025
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : The outer body of an aircraft is made of metal which protects persons sitting inside from lightning strikes. Reason (R) : The electric field inside the cavity enclosed by a conductor is zero. In the light of the above statements, choose the most appropriate answer from the options given below:
1. (A) $Both (A) and (R) are correct but (R) is not the correct explanation of (A)$
2. (B) $(A) is correct but (R) is not correct$
3. (C) $Both (A) and (R) are correct and (R) is the correct explanation of (A)$
4. (D) $(A) is not correct but (R) is correct$
Show answerAnswer
$Answer: (C) Both (A) and (R) are correct and (R) is the correct explanation of (A)$
Question 3 · JEE Main 2025
A dipole with two electric charges of 2 µC magnitude each, with separation distance 0.5 µm, is placed between the plates of a capacitor such that its axis is parallel to an electric field established between the plates when a potential difference of 5 V is applied. Separation between the plates is 0.5 mm. If the dipole is rotated by 30° from the axis, it tends to realign in the direction due to a torque. The value of torque is:
1. (A) $2.5 \times 1 0^{- 9} N \cdot m$
2. (B) $2.5 \times 1 0^{- 12} N \cdot m$
3. (C) $5 \times 1 0^{- 3} N \cdot m$
4. (D) $5 \times 1 0^{- 9} N \cdot m$
Show answerAnswer
$Answer: (D) 5 \times 1 0^{- 9} N \cdot m$
Question 4 · JEE Main 2025
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R) . Assertion (A) : Net dipole moment of a polar linear isotropic dielectric substance is not zero even in the absence of an external electric field. Reason (R) : In the absence of an external electric field, the different permanent dipoles of a polar dielectric substance are oriented in random directions. In the light of the above statements, choose the most appropriate answer from the options given below :
1. (A) $Both (A) and (R) are correct and (R) is the correct explanation of (A).$
2. (B) $Both (A) and (R) are correct but (R) is not the correct explanation of (A)$
3. (C) $(A) is not correct but (R) is correct$
4. (D) $(A) is correct but (R) is not correct$
Show answerAnswer
$Answer: (C) (A) is not correct but (R) is correct$
Question 5 · JEE Main 2024
The vehicles carrying inflammable fluids usually have metallic chains touching the ground:
1. (A) $To protect tyres from catching dirt from ground$
2. (B) $It is a custom.$
3. (C) $To alert other vehicles$
4. (D) $To conduct excess charge due to air friction to ground and prevent sparking$
Show answerAnswer
$Answer: (D) To conduct excess charge due to air friction to ground and prevent sparking$

Electrostatics questions by year

Year	Questions	Share of chapter questions
2026	26
2025	37
2024	32
2023	35
2022	27
2021	31
2020	21
2019	24
2018	5
2017	3
2016	3

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FAQs

How many JEE Main questions have been asked from Electrostatics?

EByAi's bank holds 244 real JEE Main questions from Electrostatics, asked between 2016 and 2026 — about 22 per year on average. Every count is measured from actual papers, not estimated.

Is Electrostatics important for JEE Main?

244 questions over 11 papers make Electrostatics a high-weightage chapter in JEE Main Physics. The year-wise table above shows exactly how often it appears.

Can I solve Electrostatics PYQs online for free?

Yes. EByAi lets you solve JEE Main past-year questions in the browser with written solutions — free daily practice, no card needed.

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