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NEET Physics: Electric Charges and Fields. Chapter-wise Practice Questions and Test

Electric Charges and Fields is a Class 12 Physics chapter that carries about 2.8% of the Physics questions in NEET. Practise it with 40 questions covering 2 topics, each with an explanation.

Practise Electric Charges and Fields

Sets of 15 questions that adapt to your level, with an explanation for every answer.

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Topics covered in Electric Charges and Fields

How often Electric Charges and Fields has come up in NEET

Across the 13 previous year papers, Electric Charges and Fields had 19 questions, about 1.5 a year. The most in one paper was 4, in NEET 2023.

PaperQuestions from this chapter
NEET 20261
NEET 20252
NEET 20240
NEET 20234
NEET 20222
NEET 20212
NEET 20201
NEET 20193
NEET 20181
NEET 20171
NEET 20161
Re-AIPMT 20151
AIPMT 20140

Sample questions on Electric Charges and Fields with answers

8 questions from the practice bank, spread across the chapter's topics. The full set is in the app.

Question 1: Coulomb's Law

The ratio of the electrostatic force to the gravitational force between two electrons is of the order of:

  1. A 10¹²
  2. B 1
  3. C 10⁻⁴²
  4. D 10⁴²

Answer: D. 10⁴²

Why: The electric force is enormously larger than the gravitational force at the atomic scale.

Question 2: Electric Field, Field Lines and Gauss's Law

The electric field inside a uniformly charged hollow conducting sphere is:

  1. A maximum at the center
  2. B zero everywhere inside
  3. C equal to the field outside
  4. D infinite

Answer: B. zero everywhere inside

Why: By Gauss's law, since no charge is enclosed within any Gaussian surface drawn inside a hollow conducting sphere (all charge resides on the outer surface), the electric field inside is zero.

Question 3: Coulomb's Law

Two identical conducting spheres carry charges of +6 μC and +2 μC. They are touched together and separated. Each now carries:

  1. A +3 μC
  2. B +4 μC
  3. C +2 μC
  4. D +8 μC

Answer: B. +4 μC

Why: The charge is shared equally between identical spheres, so (6 + 2)/2 = 4 μC.

Question 4: Electric Field, Field Lines and Gauss's Law

A closed surface contains no net charge. The net electric flux through it is:

  1. A positive
  2. B negative
  3. C infinite
  4. D zero

Answer: D. zero

Why: By Gauss's law, the flux is q_enclosed/ε₀ = 0.

Question 5: Coulomb's Law

The SI unit of the electric dipole moment is:

  1. A coulomb metre
  2. B newton metre
  3. C volt per metre
  4. D coulomb per metre

Answer: A. coulomb metre

Why: p = q × 2a, a charge multiplied by a distance, so its unit is C m.

Question 6: Electric Field, Field Lines and Gauss's Law

The electric field at a distance r from an infinitely long line charge with a linear density λ is:

  1. A λr/ε₀
  2. B λ/(2πε₀r)
  3. C λ/(4πε₀r²)
  4. D λ/(2ε₀)

Answer: B. λ/(2πε₀r)

Why: E ∝ 1/r for a line charge.

Question 7: Coulomb's Law

Two point charges, each of magnitude q, are separated by a distance r in vacuum and experience a mutual force F. If the distance is halved, the new force is:

  1. A F/4
  2. B F/2
  3. C 2F
  4. D 4F

Answer: D. 4F

Why: Coulomb's force follows F ∝ 1/r². Halving the distance increases the force by a factor of 4.

Question 8: Electric Field, Field Lines and Gauss's Law

Inside a uniformly charged non-conducting solid sphere, the electric field at a distance r from the centre varies as:

  1. A 1/r²
  2. B 1/r
  3. C r
  4. D r²

Answer: C. r

Why: The charge enclosed is proportional to r³, and the area to r², so E ∝ r.

Practise all of Electric Charges and Fields
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Frequently asked questions

How many questions come from Electric Charges and Fields in NEET?

Electric Charges and Fields carries about 2.8% of the Physics questions in NEET. Across the 13 previous year papers on NeetVictory it appeared 19 times, about 1.5 questions a year.

Which class is Electric Charges and Fields from?

Electric Charges and Fields is a Class 12 Physics chapter in the NCERT syllabus.

Where can I practise Electric Charges and Fields questions for NEET?

NeetVictory has 40 practice questions on Electric Charges and Fields, each with an explanation, in sets of 15 that adapt to your level. This page shows a free sample.

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