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Torque on a Current Loop and Magnetic Dipole Moment for GUJCET: 7 solved questions

Real GUJCET paper questions on torque on a current loop and magnetic dipole moment, part of moving charges and magnetism. Each opens with the options, the correct answer and a step-by-step solution. Papers run from 2008 to 2026. No sign-in needed to read them.

What this topic asks

• Magnetic moment of loops and charges — 5 questions
• Torque and potential energy — 2 questions

All 7 questions with solutions

• A current I flows in a conducting wire of length L. If we bend it in a circular form, its magnetic dipole mom… GUJCET 2008
• A coil having 10 A m² magnetic moment is placed in a vertical plane and is free to rotate about its horizonta… GUJCET 2020
• Circular loop having radius r, carrying current J, produces magnetic field at the centre of the loop is B. Wh… GUJCET 2021
• A closely wound solenoid of 800 turns and area of cross section 2.5 × 10⁻⁴ m² carries a current of 3.0 A. The… GUJCET 2026
• A conducting wire of 1 m length is used to form a circular loop. If it carries a current of 1 ampere, its mag… GSEB Board July 2015
• Unit of Bohr magneton is . GSEB Board March 2020
• A uniform magnetic field of 0.3 T is established along the +ve Z direction. A rectangular loop of sides 10 cm… GSEB Board March 2023