Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Moving Charges and Magnetism

Question:

If the particle enters a magnetic field at a certain angle, then what will be the pitch of the path be given by?

Options:

2πmv Cos θ/qB

2πv Cos θ/qB

πmv Cos θ/qB

πmv Cos θ/2qB

Correct Answer:

2πmv Cos θ/qB

Explanation:

Pitch of the Helical Path: The distance travelled in one time period along the axis of the helical path is called the pitch of the path. Therefore,
theta}{qB}$

$ Pitch = vcos\theta T = vcos\theta \times \frac{2\pi m}{qB} = \frac{2\pi m v cos\theta}{qB}$