A conductor is placed along z-axis carrying current in z direction in uniform magnetic field directed along y-axis. The magnetic force acting on the conductor is directed along:

negative x-axis

The correct answer is Option (4) → negative x-axis

Given:

Current (I) → along z-axis → $\hat{z}$

Magnetic field (B) → along y-axis → $\hat{y}$

Magnetic force on conductor: $\vec{F} = I (\vec{L} \times \vec{B})$

$\hat{z} \times \hat{y} = -\hat{x}$

∴ Magnetic force is directed along negative x-axis.

Answer: Along –x direction