Physics · JEE | Moving Charges and Magnetism

The magnetic force on a straight current-carrying rod of length \( l \) carrying current \( I \) in an external uniform magnetic field \( \vec{B} \) is given by:

1. A
   \( \vec{F} = I(\vec{B} \times \vec{l}) \)
2. B
   \( \vec{F} = q(\vec{v} \times \vec{B}) \)
3. C
   \( \vec{F} = I(\vec{l} \times \vec{B}) \)
4. D
   \( \vec{F} = \frac{Il}{B} \)