Question

magnetic fields of magnitude 1.53×104V/m and 2.75×10−3T, respectively? me=9.11×10−31kg, e=1.60×10−19C.

v =	5.56×106 ms

1-What is the radius of the electron orbit if the electric field is turned off?

Express your answer to three significant figures and include the appropriate units.

2-

Δv =

4300 ms

Assuming the minimum speed must be at least equal to its uncertainty, what is the electron's minimum kinetic energy?

Express your answer using two significant figures.

Answer 1