Home
Class 12
PHYSICS
An electron beam is moving between two p...

An electron beam is moving between two parallel plates having eletric field `1.125 xx 10^(-6) N//m`. A magnetic field `3 xx 10^(-10) T` is also applied so that beam of electrons do not deflect. The velocity of the electron is

A

4225 m/s

B

3750 m/s

C

2750 m/s

D

3200 m/s

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • ELECTRON, PHOTON, PHOTOELECTRIC EFFECT AND X-RAYS

    ERRORLESS |Exercise Cathode Rays and Positive Rays|11 Videos

  • ELECTRON, PHOTON, PHOTOELECTRIC EFFECT AND X-RAYS

    ERRORLESS |Exercise Photon and Photoelectric Effect|4 Videos

  • ELECTRO MAGNETIC INDUCTION

    ERRORLESS |Exercise SET|20 Videos

  • ELECTRONICS

    ERRORLESS |Exercise Selv Evaluation Test|23 Videos

Similar Questions

Explore conceptually related problems

A beam of electron is moving with constant velocity in a region having electric and magnetic fields of strength 20Vm^(-1) and 0.5T at right angles to the direction of motion of the electrons. What is the velocity of the electrons?

An electron is moving with a velocity of 5 xx 10^(7) m/s in a magnetic field of 6 xx 10^(-4) T perpendicular to it. What is the frequency? Also find the energy of electron in MeV.

An electron (mass =9.1xx10^(-31)kg , charge =1.6xx10^(-19)C ) experiences no deflection if subjected to an electric field of 3.2 x 10^(5)V/m , and a magnetic fields of 2.0xx10^(-3)Wb/m^(2) . Both the fields are normal to the path of electron and to each other. If the electric field is removed, then the electron will revolve in an orbit of radius

An electron beam is passing through a magnetic field of 5 xx 10^(-4) T and electric field of 3 xx 10^(5) V m^(-1) , both acting simultaneously. Calculate the speed of electrons if the electron beap goes undeviated. What will be radius of the path oh removal of electric field?

An electron beam passes through a magnetic field of 2xx10^-3 weber//m^2 and an electric field of 1*0xx10^4Vm^-1 both acting simultaneously. The path of electrons remaining undeviated, calculate the speed of the electrons. If the electric field is removed what will be the radius of the electron path?

An electron beam passes through a magnetic field of 4xx10^-3 weber//m^2 and an electric field of 2xx10^4Vm^-1 , both acting simultaneously. The path of electron remaining undeviated, calcualte the speed of the electrons. If the electric field is removed, what will be the radius of the electron path?

First orbit velocity of electron is 2.1 xx 10^(6) m//s then the velocity of 3rd orbit electron is

An electron is moving with a speed of 3.5xx10^(5) m//s when it encounters a magnetic field of 0.60 T. The direction of the magnetic field makes an angle of 60.0^(@) with respect to the velocity of the electron. What is the magnitude of the magnetic force on the electron ?

In an experiment to measure the charge on an electrons , the electrons travelling at a speed of 1.825 xx 10^(7) m/s are subjected to a deflecting electric field 3.2 xx 10^(4) V/m . The intensity of magnetic field applied so that the beam remains undeflected is