Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Moving Charges and Magnetism

Question:

A uniform magnetic field $\vec{B}$ is established along the positive z-direction. A rectangular loop of sides 'a' and 'b' carries a current of I as shown in figure. The torque in the loop is:

Options:

IabB \((-\hat{j})\)

IabB \((\hat{j})\)

IabB \((\hat{k})\)

IabB \((\hat{i})\)

Correct Answer:

IabB \((\hat{i})\)

Explanation:

$ \tau = IabB \text{ along }(\hat{i})$