Target Exam

CUET

Subject

Physics

Chapter

Moving Charges and Magnetism

Question:

The magnitude of a magnetic force on a current carrying conductor is given by:

Options:

$q\frac{dV}{dx}$

$q\,vB \sin θ$

$i\,lB \sin θ$

$q(E+VB \sin θ)$

Correct Answer:

$i\,lB \sin θ$

Explanation:

The correct answer is Option (3) → $i\,lB \sin θ$

According to Lorentz force,

$F=I(\vec L×\vec B)$

$⇒|F|=ILB\sin θ$