Question

a 10 eV electron is circulating in a plane at right angles to a uniform field of magnetic induction 10^-4 Tesla (= 1 gauss), the orbital radius of electron is:-
a) 11 cm
b) 18 cm
c) 12 cm
d) 16 cm
(correct answer is option a......please explain )

Answer 1

distance of 4 cm from a long current carrying wire is 10– ... circular orbit of radius 0.5 metre in a plane ... orbital radius of the electron is [ 1996]. (a) 12 cm. (b) 16 cm. (c) 11 cm. (d ...

Answer 2

When an electron is circulating in uniform magnetic field perpendicular to it then.

There are angle = 90 degree as it is revolving perpendicular to field.

Now we also know that,

Given that

Now radius is given by above formula

R = 10.66 cm which is approximately 11 cm