Question

When a positively charged particle enters a uniform magnetic field perpendicular to the magnetic field, then the path of the particle will be?

• A. Circular
• B. Elliptical
• C. Helical
• D. Straight

Answer 1

The correct option is A Circular

The path of a charged particle in a magnetic field is dependent on the angle with which it enters the magnetic field and the path will be as follows:

Straight line $\Rightarrow$ If $\theta =0^0$ or $\theta ={180}^0$
Circular path $\Rightarrow \theta ={90}^0$
Helicaal path $\Rightarrow \theta \ne {90}^0,\theta \ne 0^0$ or $\theta \ne {180}^0$