Home
Class 12
PHYSICS
A mono energetic electron beam with a s...

A mono energetic electron beam with a speed of ` 5.2xx10^(6) ms^(-1)` enters into a magnetic filed of induction ` 3xx10^(-4) T`, directed normal to the beam . Find the radius of the circul traced by the beam `(Take e//m=1.76xx10^(11) Ckg)`

Text Solution

Verified by Experts

From the eqation, `Bev =(mv^(2))/(r)`
Radius of circle `=(mv)/(Bq)= V/(B(e//m))`
`therefore r=(5.2xx10^(6))/(3xx10^(-4) (1.76xx10^(11)))=01.m`
Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

(a) A monoenergetic electron beam with electron speed of 5.20xx10^(6)ms^(-1) is subjected to a magnetic field of 1.30xx10^(-4)T , normal to the beam velocity. What is the radius of the circle traced by the beam, given e//m for electron equal 1.76xx10^(11)C.kg^(-1) . (b) Is the formula you employ in (a) valid for calculating radius of the path of 20 MeV electrons beam? If not, in what way is it modified!

An electron beam moving with a speed of 2.5xx10^(7) ms^(-1) enters into the magnetic field 4xx10^(-3) Wb//m^(2) directed perpendicular to its direction of motion. Find the intensity of the electron moves undeflected .

The radius of the path of an electron moving at a speed of 3xx10^(7) ms^(-1) perpendiuclar to a magnetic field 5xx10^(-4) T is nearly

A stream of electrons moving with a speed of 3xx10^(7) ms^(-1) is deflected on passing through an electric field of 1800 Vm^(-1) , perpendicular to its path. If the radius iof the deflected beam is 3 m , calculate the value of e//m=1.76xx10^(11)C kg^(-1) .

An electron enters in a magnetic held of induction 2 m T with velocity of 1.8 xx 10^(7) m/s . The radius of circular path is

An electron moving with kinetic energy 6xx10^(-16) joules enters a field of magnetic induction 6xx10^(-3)" weber//m^2 at right angle to its motion . The radius of its path is

A beam of ions with velocity 2xx 10^(5) m/s enters normally into a uniform magnetic field of 4 xx 10^(-2) T. if the specific charge to the ions is 5xx 10^(7) C/kg, the radius of the circular path described will be

The electron in hydrogen atom moves with a speed of 2.2xx10^(6)m//s in an orbit of radius 5.3xx10^(-11)cm . Find the magnetic moment of the orbiting electron.

A beam of protons moving with a velocity of 4 xx 10^(5) m/s enetrs a uniform magnetic field of 0.3 T at an angle of 60◦ with the magnetic field. What is the radius of the helical path described by the proton beam? [m_p=1.67 xx 10^(-27) kg and the charge on the proton =1.6 xx 10^(-19) C]

An electron is moving in a cyclotron at a speed of 3.2 xx 10^(7) m s^(-1) in a magnetic field of 5 xx 10^(-4) T perpendicular to it. What is the frequency of this electron? (q=1.6xx10^(-19)C, m_(c)=9.1xx10^(-31)kg)