Which of the following particles will experience the maximum magnetic force (magnitude) when projected with the same velocity perpendicular to the magnetic field?
- Electron
- Proton
- He+
- Li++
The Correct Option is D
Solution and Explanation
The magnetic force (F) on a charged particle is calculated using the formula: F = qvB sinθ.
For a perpendicular projection, θ = 90°, which means sinθ = 1. Therefore, with constant velocity (v) and magnetic field (B), the force is directly proportional to the charge (q).
The charges of various particles are:
| Particle | Charge (q) |
|---|---|
| Electron | -e |
| Proton | +e |
| He+ | +e |
| Li++ | +2e |
Comparing the charge magnitudes, Li++ has the largest charge magnitude (2e). Consequently, it will experience the greatest magnetic force.
The particle experiencing the maximum magnetic force is Li++.
Correct option: (4) Li++
Top Questions on Magnetic Effects of Current and Magnetism
Three long straight wires carrying current are arranged mutually parallel as shown in the figure. The force experienced by \(15\) cm length of wire \(Q\) is ________. (\( \mu_0 = 4\pi \times 10^{-7}\,\text{T m A}^{-1} \))
- JEE Main - 2026
- Physics
- Magnetic Effects of Current and Magnetism
- The energy of an electron in an orbit of the Bohr's atom is $-0.04 E_g$ where $E_g$ is the ground state energy. If $L$ is the angular momentum of the electron in this orbit and $h$ is the Planck's constant, then $\frac{2 \pi L{h}$ is _________} :}
- JEE Main - 2026
- Physics
- Magnetic Effects of Current and Magnetism
- The pattern of magnetic field due to a current carrying wire depends upon the shape made by that wire. Justify.
- CBSE Class X - 2026
- Science
- Magnetic Effects of Current and Magnetism
- Imagine that you are sitting in a chamber with your back to one wall. An electron beam, moving horizontally towards the front wall from the back wall, is deflected by a strong magnetic field to your right side. Find the direction of the magnetic field.
- CBSE Class X - 2026
- Science
- Magnetic Effects of Current and Magnetism
- Want to practice more? Try solving extra ecology questions todayView All Questions