Question

An electron is moving on a circular path of radius r with speed v in a transverse magnetic field B. e/m for it will be

• A. $\frac { v } { B r }$
• B. $\frac { B } { r v }$
• C. Bvr
• D. $\frac { v r } { B }$

Answer 1

Answer: (A)

$\frac { v } { B r }$

Answer 2