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jee_main_2025_03_april_morning - Magnetic Effects of Current Topics

Master these core formulas and structures to solve almost any past paper question.

Sample Questions in this Chapter

QUESTION #22 Magnetic Force on a Straight Wire
A 4.0mathrm~cm long straight wire carrying a current of 8mathrm~A is placed perpendicular to an uniform magnetic field of strength 0.15mathrm~T. The magnetic force on the wire is ________ mathrmmN.
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QUESTION #24 Magnetic Field at the Center of Circular Segments
A loop ABCDA, carrying current I = 12mathrm~A, is placed in a plane, consists of two semi-circular segments of radius R_1 = 6pimathrm~m and R_2 = 4pimathrm~m. The magnitude of the resultant magnetic field at center O is ktimes 10^-7mathrm~T The value of k is ________. (Given mu_0=4pitimes10^-7mathrm~Tcdot mcdot A^-1) {{IMG1}}
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Practice past-year questions one chapter at a time. Pick an exam → subject → chapter and get every PYQ for that topic — pulled together from all past papers — with the chapter's key formulas alongside.

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