Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Moving Charges and Magnetism

Question:

If an electron is moving with velocity v produces a magnetic field B, then;

Options:

Direction of B and V are same

The direction of B is opposite to V

The direction of V is perpendicular to B

Direction of B is independent of V

Correct Answer:

The direction of V is perpendicular to B

Explanation:

According to Biot-Savart's law, The direction of B will be along Vxr i.e. perpendicular to the plane containing V and r