Moving Charges & Magnetism — JEE Main PYQs & Practice Questions

Moving Charges & Magnetism is a Physics chapter in the JEE Main syllabus. This page brings together 201 previous-year and practice questions on Moving Charges & Magnetism, organised into 9 topics: Magnetic Force on Moving Charge, Motion in Magnetic Field, Biot-Savart Law, Ampere's Circuital Law, Solenoid and Toroid, Force Between Conductors, Galvanometer and Conversion, Cyclotron and Torque on Current Loop and Magnetic Dipole. Most questions come with a step-by-step solution you can work through free in PrepWiser.

Download Moving Charges & Magnetism JEE Main PYQs as a free PDF (with answer key)

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Chapter weightage: how many questions each chapter had per shift in the 2024–26 papers.

Magnetic Force on Moving Charge

• A charge particle is moving in a uniform magnetic field (2 î+3 ĵ) T. If it has an…
• A straight wire AB of mass 40 g and length 50 cm is suspended by a pair of flexible…
• A 2A current carrying straight metal wire of resistance 1 Ω, resistivity 2 × 10⁻⁶ Ω m…
• Given below are two statements. One is labelled as Assertion (A) and the other is…
• A charged particle going around in a circle can be considered to be a current loop. A…
• An electron is allowed to move with constant velocity along the axis of current carrying…
• A loop of flexible wire of irregular shape carrying current is placed in an external…
• A square loop of edge length 2 m carrying current of 2 A is placed with its edges…
• A wire of length 0.5 m carries 4 A in a 0.2 T field perpendicular to it. The force on…
• As shown in the figure, a metallic rod of linear density 0.45 kg m⁻¹ is lying…
• A charged particle carrying charge 1 μC is moving with velocity ( 2î + 3ĵ + 4k̂ ) ms –1…
• The horizontal component of earth's magnetic field at a place is 3.5 × 10⁻⁵ T. A very…
• Given below are two statements : Statement I : The electric force changes the speed of…
• A charge of 4.0 μ C is moving with a velocity of 4.0 × 10⁶ ms⁻¹ along the positive y…
• A rigid wire consists of a semicircular portion of radius R and two straight sections…
• A charge Q is moving dl⃗ distance in the magnetic field B⃗. Find the value of work done…
• The electrostatic force (F₁⃗) and magnetic force (F⃗₂) acting on a charge q moving with…
• An electron is moving along +x direction with a velocity of 6 × 10⁶ ms –1 . It enters a…
• A single turn current loop in the shape of a right angle triangle with sides 5 cm, 12…
• A triangular shaped wire carrying 10 A current is placed in a uniform magnetic field of…

Motion in Magnetic Field

• A singly ionized magnesium atom (A = 24) ion is accelerated to kinetic energy 5 keV, and…
• Uniform magnetic fields of different strengths (B₁ and B₂), both normal to the plane of…
• Two charged particles, having same kinetic energy, are allowed to pass through a uniform…
• A charge particle of 2 μ C accelerated by a potential difference of 100 V enters a…
• Two ions having same mass have charges in the ratio 1 : 2. They are projected normally…
• Given below are two statements : One is labelled as Assertion (A) and the other is…
• Given below are two statements: one is labelled as A s s e r t i o n A and the other is…
• A proton, a deutron and an α-particle with same kinetic energy enter into a uniform…
• A charge particle moving in magnetic field B, has the components of velocity along B as…
• A deuteron and a proton moving with equal kinetic energy enter into a uniform magnetic…
• Consider a long thin conducting wire carrying a uniform current I. A particle having…
• A particle having charge 10⁻⁹ C moving in x-y plane in fields of 0.4ĵ N/C and 4× 10⁻³k̂…
• A proton and an alpha particle of the same velocity enter in a uniform magnetic field…
• A monochromatic light is incident on a metallic plate having work function φ. An…
• The charged particle moving in a uniform magnetic field of (3î+2ĵ)T has an acceleration…
• A current carrying solenoid is placed vertically and a particle of mass m with charge Q…
• A particle of charge q and mass m is projected from origin with an initial velocity…
• A particle of charge q, mass m and kinetic energy E enters in magnetic field…
• 1 μC charge moving with velocity v⃗=(î-2ĵ+3k̂) m/s in the region of magnetic field…
• A particle of charge q and mass m is moving with a velocity - vî (v ≠ 0) towards a large…

Biot-Savart Law

• A closely wounded circular coil of radius 5 cm produces a magnetic field of 37.68 × 10⁻⁴…
• There are two infinitely long straight current carrying conductors and they are held at…
• A current of 5 A exists in a square loop of side 1/√2 m. Then the magnitude of the…
• The fractional change in the magnetic field intensity at a distance 'r' from centre on…
• A hairpin like shape as shown in figure is made by bending a long current carrying wire…
• The magnetic field at the center of a circular loop of radius R carrying current I is:
• The current of 5 A flows in a square loop of sides 1 m is placed in air. The magnetic…
• A circular loop of radius r is carrying current I A. The ratio of magnetic field at the…
• An electron in a hydrogen atom revolves around its nucleus with a speed of 6.76 × 10⁶…
• A wire A, bent in the shape of an arc of a circle, carrying a current of 2 A and having…
• Two circular coils P and Q of 100 turns each have same radius of π cm. The currents in P…
• A current of 1.5 A is flowing through a triangle, of side 9 cm each. The magnetic field…
• Consider a circular coil of wire carrying constant current I, forming a magnetic dipole…
• Magnetic fields at two points on the axis of a circular coil at a distance of 0.05 m and…
• An infinite wire has a circular bend of radius a , and carrying a current I as shown in…
• The current passing through a conducting loop in the form of equilateral triangle of…
• Two identical circular loops P and Q each of radius r are lying in parallel planes such…
• Let B₁ be the magnitude of magnetic field at center of a circular coil of radius R…
• Magnitude of magnetic field (in SI units) at the centre of a hexagonal shape coil of…
• Two concentric circular loops of radii r₁=30 cm and r₂=50 cm are placed in X-Y plane as…

Ampere's Circuital Law

• A long straight wire of radius a carries a steady current I. The current is uniformly…
• A long straight wire of circular cross-section (radius a) is carrying steady current I…
• N equally spaced charges each of value q , are placed on a circle of radius R . The…
• A long straight wire of a circular cross-section with radius ' a ' carries a steady…
• Two long, straight wires carry equal currents in opposite directions as shown in figure…
• Consider a long straight wire of a circular cross-section (radius a ) carrying a steady…
• An infinitely long hollow conducting cylinder with radius R carries a uniform current…
• In a co-axial straight cable, the central conductor and the outer conductor carry equal…
• The magnetic field at distance r from a long straight wire carrying current I is:
• Figure A and B shown to long straight wires of circular cross-section (a and b with a <…
• A long straight wire with a circular cross-section having radius R, is carrying a steady…
• A long, straight wire of radius a carries a current distributed uniformly over its…
• A coaxial cable consists of an inner wire of radius 'a' surrounded by an outer shell of…
• Given below are two statements : Statement (I) : When currents vary with time, Newton's…
• Two parallel long current carrying wire separated by a distance 2 r are shown in the…
• A long cylindrical conductor with large cross section carries an electric current…

Solenoid and Toroid

• The magnetic intensity at the center of a long current carrying solenoid is found to be…
• A long solenoid is formed by winding 70 turns cm⁻¹. If 2.0 A current flows, then the…
• Four identical long solenoids A, B, C and D are connected to each other as shown in the…
• A solenoid of 1200 turns is wound uniformly in a single layer on a glass tube 2 m long…
• The magnetic field inside a 200 turns solenoid of radius 10 cm is 2.9 × 10⁻⁴ Tesla. If…
• A long solenoid carrying a current produces a magnetic field B along its axis. If the…
• A solenoid of 1000 turns per metre has a core with relative permeability 500. Insulated…
• A solenoid of length 0.5 m has a radius of 1 cm and is made up of 'm' number of turns…
• A tightly wound long solenoid carries a current of 1.5 A . An electron is executing…
• Inside a long ideal solenoid with n turns per unit length carrying current I, the…

Force Between Conductors

• A current carrying rectangular loop PQRS is made of uniform wire. The length P R=Q S=5…
• Two long parallel wires carrying currents 8A and 15A in opposite directions are placed…
• Three long straight wires carrying current are arranged mutually parallel as shown in…
• Two parallel, long wires are kept 0.20 m apart in vacuum, each carrying current of x A…
• A wire X of length 50 cm carrying a current of 2 A is placed parallel to a long wire Y…
• A square loop of side 2a, and carrying current I, is kept in XZ plane with its centre at…
• Two long straight wires P and Q carrying equal current 10A each were kept parallel to…
• Two 10 cm long, straight wires, each carrying a current of 5A are kept parallel to each…

Galvanometer and Conversion

• A galvanometer has a resistance of 50 Ω and it allows maximum current of 5 mA. It can be…
• The number of turns of the coil of a moving coil galvanometer is increased in order to…
• Consider a galvanometer shunted with 5Ω resistance and 2% of current passes through it…
• The current sensitivity of a galvanometer can be increased by : (A) decreasing the…
• A moving coil of galvanometer when shunted with 2Ω resistance gives a full scale…
• A galvanometer of resistance 100 Ω when connected in series with 400 Ω measures a…
• A galvanometer is used in laboratory for detecting the null point in electrical…
• A student is provided with a variable voltage source V, a test resistor R_T=10 Ω, two…
• If n represents the actual number of deflections in a converted galvanometer of…
• A moving coil galvanometer of resistance 100Ω shows a full scale deflection for a…
• Certain galvanometers have a fixed core made of non magnetic metallic material. The…
• For designing a voltmeter of range 50 V and an ammeter of range 10 mA using a…
• A galvanometer has a coil of resistance 200 Ω with a full scale deflection at 20 μ A…
• A 72 Ω galvanometer is shunted by a resistance of 8 Ω. The percentage of the total…
• When a resistance of 5 Ω is shunted with a moving coil galvanometer, it shows a full…
• In a moving coil galvanometer, two moving coils M₁ and M₂ have the following particulars…
• A coil in the shape of an equilateral triangle of side 10 cm lies in a vertical plane…
• In the figure shown below, a resistance of 150.4 Ω is connected in series to an ammeter…
• Given below are two statements: Statement I : If the number of turns in the coil of a…
• A galvanometer is converted to an ammeter by connecting:

Cyclotron

• A cyclotron is used to accelerate protons. If the operating magnetic field is 1.0 T and…
• A cyclotron is working at a frequency of 10 MHz. If the radius of its dees is 60 cm. The…
• The cyclotron frequency is:
• A charge particle moves along circular path in a uniform magnetic field in a cyclotron…
• A cyclotron cannot accelerate:
• If the maximum value of accelerating potential provided by a ratio frequency oscillator…

Torque on Current Loop and Magnetic Dipole

• A uniform conducting wire of length is 24a, and resistance R is wound up as a current…
• A current carrying circular loop of radius 2 cm with unit normal n=(k̂+î)/√2 is placed…
• A circular coil of radius 2 cm and 125 turns carries a current of 1 A . The coil is…
• An insulated wire is wound so that it forms a flat coil with N=200 turns. The radius of…
• A circular coil has moment of inertia 0.8 kg m² around any diameter and is carrying…

More Physics chapters

• Basic Mathematics for Physics
• Units, Dimensions & Errors
• Rectilinear Motion
• Vectors
• Projectile Motion & Relative Motion
• Newton's Laws of Motion
• Friction
• Circular Motion
• Work, Energy & Power
• Centre of Mass & Linear Momentum
• Collision
• Rotational Motion
• Gravitation
• Simple Harmonic Motion
• Elasticity
• Fluid Mechanics
• Surface Tension
• Thermometry & Calorimetry
• Kinetic Theory of Gases
• Thermodynamics
• Heat Transfer
• Mechanical Waves
• Sound Waves
• Experimental Skills
• Electrostatics I — Charges, Field & Gauss's Law
• Electrostatics II — Potential & Capacitance
• Current Electricity
• Magnetism & Matter
• Electromagnetic Induction
• Alternating Current
• Electromagnetic Waves
• Ray Optics
• Wave Optics
• Dual Nature of Radiation & Matter
• Atomic Physics
• Nuclear Physics
• Semiconductors & Electronic Devices
• Communication Systems

Frequently asked questions

How many Moving Charges & Magnetism questions are there for JEE Main?

PrepWiser has 201 Moving Charges & Magnetism questions for JEE Main, grouped into 9 topics such as Magnetic Force on Moving Charge, Motion in Magnetic Field and Biot-Savart Law.

Are these Moving Charges & Magnetism questions from previous-year JEE Main papers?

Yes — most are genuine previous-year questions from past JEE Main papers, and the rest are practice questions written to match the JEE Main pattern and difficulty.

Where can I see the answers and solutions to these Moving Charges & Magnetism questions?

Open any Moving Charges & Magnetism question in PrepWiser (it is free) to attempt it; most come with a step-by-step solution.