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Force on a Current-Carrying Conductor for JEE: 32 solved questions

Real JEE paper questions on force on a current-carrying conductor, part of moving charges and magnetism. Each opens with the options, the correct answer and a step-by-step solution. Papers run from 2002 to 2025. No sign-in needed to read them.

What this topic asks

• Force on a wire in a field — 19 questions
• Force between parallel currents — 13 questions

All 32 questions with solutions

• Two long straight wires P and Q carrying equal current 10 A each were kept parallel to each other at 5 cm dis… JEE Main 24th Jan 1st Shift 2023
• A current carrying rectangular loop PQRS is made of uniform wire. The length PR=QS=5 cm and PQ=RS=100 cm. If… JEE Main 30th Jan 2nd Shift 2023
• A wire X of length 50 cm carrying a current of 2 A is placed parallel to a long wire Y of length 5 m. The wir… JEE Main 29th July 2nd Shift 2022
• Two parallel, long wires are kept 0.20 m apart in vacuum, each carrying a current of x A in the same directio… JEE Main 28th June 2nd Shift 2022
• A rigid square loop of side a and carrying current I₂ is lying on a horizontal surface near a long wire carry… JEE Main 9th April 1st Shift 2019
• Two wires A and B are carrying currents I₁ and I₂ as shown in the figure. The separation between them is d. A… JEE Main 10th April 1st Shift 2019
• Two long current carrying thin wires, both with current I, are held by insulating threads of length L and are… JEE Main 2015
• Two long straight parallel wires, carrying (adjustable) currents I₁ and I₂, are kept at a distance d apart. I… JEE Main Online 2015
• Currents of 10 A and 2 A are passed through two parallel thin wires A and B respectively in opposite directio… JEE Main Online 2012
• Two thin long, parallel wires, separated by a distance d carry a current of i A in the same direction. They w… JEE Main 2005
• Two long conductors, separated by a distance d carry currents I₁ and I₂ in the same direction. They exert a f… JEE Main 2004
• If a current is passed through a spring then the spring will JEE Main 2002
• Two 10 cm long, straight wires, each carrying a current of 5 A are kept parallel to each other. If each wire… JEE Main 26th June 2nd Shift 2022
• Refer to the paragraph and figure of the previous question (current loop ABCD with arcs BC of radius b and DA… JEE Main 2009
• A rigid wire consists of a semicircular portion of radius R and two straight sections. The wire is partially… JEE Main 31st Jan 1st Shift 2024
• A massless square loop, of wire of resistance 10 Ω, supporting a mass of 1 g, hangs vertically with one of it… JEE Main 30th Jan 1st Shift 2023
• As shown in the figure, a metallic rod of linear density 0.45 kg m⁻¹ is lying horizontally on a smooth inclin… JEE Main 28th July 1st Shift 2022
• A triangular shaped wire carrying 10 A current is placed in a uniform magnetic field of 0.5 T, as shown in th… JEE Main 28th July 2nd Shift 2022
• A loop of flexible wire of irregular shape carrying current is placed in an external magnetic field. Identify… JEE Main 18th March 1st Shift 2021
• Two coaxial solenoids of different radii carry current I in the same direction. Let F⃗₁ be the magnetic force… JEE Main 2015
• A wire carrying current I is tied between points P and Q and is in the shape of a circular arch of radius R d… JEE Main Online 2015
• A conductor lies along the z-axis at -1.5≤ z<1.5 m and carries a fixed current of 10.0 A in the -â_z directi… JEE Main 2014
• The circuit in the figure consists of wires at the top and bottom and identical springs as the left and right… JEE Main Online 2012
• A 4.0 cm long straight wire carrying a current of 8 A is placed perpendicular to a uniform magnetic field of… JEE Main 3rd April 1st Shift 2025
• The magnetic field existing in a region is given by B⃗=0.2(1+2x)k̂ T. A square loop of edge 50 cm carrying 0.… JEE Main 4th April 1st Shift 2024
• A 2 A current carrying straight metal wire of resistance 1 Ω, resistivity 2×10⁻⁶ Ω m, area of cross-section 1… JEE Main 5th April 1st Shift 2024
• A square loop of edge length 2 m carrying current of 2 A is placed with its edges parallel to the x-y axis. A… JEE Main 9th April 1st Shift 2024
• The horizontal component of earth's magnetic field at a place is 3.5×10⁻⁵ T. A very long straight conductor c… JEE Main 30th Jan 1st Shift 2024
• A 1 m long metal rod XY completes the circuit as shown in the figure. The plane of the circuit is perpendicul… JEE Main 10th April 1st Shift 2023
• A straight wire AB of mass 40 g and length 50 cm is suspended by a pair of flexible leads in a uniform magnet… JEE Main 13th April 2nd Shift 2023
• A single turn current loop in the shape of a right angle triangle with sides 5 cm, 12 cm, 13 cm is carrying a… JEE Main 24th Jan 2nd Shift 2023
• A square loop of area 25 cm² has a resistance of 10 Ω. The loop is placed in a uniform magnetic field of magn… JEE Main 29th Jan 2nd Shift 2023