Moving Charges and Magnetism is a Class 12 Physics chapter that carries about 4.5% of the Physics questions in NEET. Practise it with 47 questions covering 2 topics, each with an explanation.
Sets of 15 questions that adapt to your level, with an explanation for every answer.
Across the 13 previous year papers, Moving Charges and Magnetism had 26 questions, about 2.0 a year. The most in one paper was 3, in NEET 2021.
| Paper | Questions from this chapter |
|---|---|
| NEET 2026 | 2 |
| NEET 2025 | 2 |
| NEET 2024 | 1 |
| NEET 2023 | 2 |
| NEET 2022 | 3 |
| NEET 2021 | 3 |
| NEET 2020 | 1 |
| NEET 2019 | 2 |
| NEET 2018 | 2 |
| NEET 2017 | 2 |
| NEET 2016 | 2 |
| Re-AIPMT 2015 | 2 |
| AIPMT 2014 | 2 |
8 questions from the practice bank, spread across the chapter's topics. The full set is in the app.
A galvanometer can be converted into an ammeter by connecting:
Answer: B. a low resistance in parallel with it
Why: The shunt takes most of the current so that only a safe fraction passes through the galvanometer coil.
A square loop of side a carries a current I. The magnetic moment of the loop is:
Answer: B. Ia²
Why: m = IA, with area A = a².
A wire of length 0.5 m carrying 4 A makes an angle of 30° with a magnetic field of 0.2 T. The force on it is:
Answer: A. 0.2 N
Why: F = BIl sinθ = 0.2 × 4 × 0.5 × 0.5 = 0.2 N.
Oersted's experiment showed that:
Answer: A. a current-carrying wire produces a magnetic field
Why: A compass needle was deflected near a wire carrying a current.
An alpha particle and a proton, both with the same kinetic energy, enter a uniform magnetic field perpendicular to it. The ratio of the radii of their paths (alpha : proton) is:
Answer: B. 1 : 1
Why: r = √(2mK)/(qB). The alpha has 4 times the mass and 2 times the charge, so r_α/r_p = √4/2 = 1.
Two long parallel wires, each carrying 10 A, are 0.1 m apart. The force per unit length between them is:
Answer: B. 2 × 10⁻⁴ N/m
Why: F/l = μ₀I₁I₂/(2πd) = 2 × 10⁻⁷ × 100/0.1 = 2 × 10⁻⁴ N/m.
A galvanometer of resistance 50 Ω gives full-scale deflection for 1 mA. To convert it into an ammeter of range 1 A, the shunt required is about:
Answer: B. 0.05 Ω
Why: S = I_gG/(I − I_g) = 0.001 × 50/0.999 ≈ 0.05 Ω.
A long solenoid has 1000 turns per metre and carries 2 A. The magnetic field inside it is (μ₀ = 4π × 10⁻⁷ T m/A):
Answer: B. 2.5 × 10⁻³ T
Why: B = μ₀nI = 4π × 10⁻⁷ × 1000 × 2 ≈ 2.5 × 10⁻³ T.
Moving Charges and Magnetism carries about 4.5% of the Physics questions in NEET. Across the 13 previous year papers on NeetVictory it appeared 26 times, about 2.0 questions a year.
Moving Charges and Magnetism is a Class 12 Physics chapter in the NCERT syllabus.
NeetVictory has 47 practice questions on Moving Charges and Magnetism, each with an explanation, in sets of 15 that adapt to your level. This page shows a free sample.
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