26 JEE Main 2020 Magnetic Effects of Current previous-year questions with verified answers and step-by-step solutions.
These are the JEE Main 2020 previous-year questions from the Magnetic Effects of Current chapter of Physics. Each links to a full solution with a verified answer key. To see the whole chapter across all years, visit the Magnetic Effects of Current chapter hub.
A long, straight Wire of radius a carries a current distributed uniformly over its cross-section. The ratio of the magn…
Magnitude of magnetic field (in SI units) at the centre of a hexagonal shape coil of side 10   cm , 50 turns and c…
A wire carrying current I is bent in the shape ABCDEFA as shown, where rectangle ABCDA and ADEFA are perpendicular to e…
A small circular loop of conducting wire has radius a and carries current I . It is placed in a uniform magnetic field…
A beam of protons with speed 4 × 10 5   m   s - 1 enters a uniform magnetic field of 0 . 3   T at a…
Proton with kinetic energy of 1   M e V moves from south to north. It gets an acceleration of 10 12   m / s 2…
A wire A , bent in the shape of an arc of a circle, carrying a current of 2   A and having radius 2   cm and…
The figure shows a region of length ' l ' with a uniform magnetic field of 0 . 3   T in it and a proton entering t…
A very long wire ABDMNDC is shown in figure carrying current I. AB and BC parts are straight, long and at right angle.…
A long solenoid of radius R carries a time t dependent current I t = I 0 t 1 - t . A ring of radius 2 R is placed coaxi…
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