JEE Main Magnetism and Moving Charges questions
9 Physics questions on Magnetism and Moving Charges as asked in JEE Main, newest first. 5 come with a worked solution.
- A circular loop of radius r is carrying current I A. The ratio of magnetic field at the center of circular loop and at a distance r from the center of the loop on its axis is:
2023
- A single current carrying loop of wire carrying current I flowing in anticlockwise direction seen from +ve z direction and lying in xy plane is shown in figure. The plot of j component of magnetic field (By) at a…
2023
- A solenoid of 1200 turns is wound uniformly in a single layer on a glass tube 2 m long and 0.2 m in diameter. The magnetic intensity at the center of the solenoid when a current of 2 A flows through it is:
2023 · with solution
- Two long straight wires P and Q carrying equal current 10A each were kept parallel to each other at 5 cm distance. Magnitude of magnetic force experienced by 10 cm length of wire P is F_1. If distance between wires is…
2023 · with solution
- The magnitude of magnetic induction at mid point O due to current arrangement as shown in Fig will be [figure]
2023
- A long solenoid is formed by winding 70 turns cm^-1. If 2.0 A current flows, then the magnetic field produced inside the solenoid is__________ (mu_o = 4π × 10^-7 TmA^-1)
2023 · with solution
- For a moving coil galvanometer, the deflection in the coil is 0.05 rad when a current of 10 mA is passed through it. If the torsional constant of suspension wire is 4.0 × 10^-5 N m rad^-1, the magnetic field is 0.01T…
2023 · with solution
- A single turn current loop in the shape of a right angle triangle with sides 5 cm, 12 cm, 13 cm is carrying a current of 2 A. The loop is in a uniform magnetic field of magnitude 0.75 T whose direction is parallel to…
2023 · with solution
- Two long parallel wires carrying currents 8A and 15A in opposite directions are placed at a distance of 7cm from each other. A point P is at equidistant from both the wires such that the lines joining the point P to the…
2023
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