An electron passes undeflected through perpendicular electric and magnetic filed of intensity `3.4xx10^(3) V//m` and `2xx10^(-3) Wb//m^(2)` respectively . Then its velocity un `m//s` is

Speed of an electron passing undeviated through a region of cross electric and magnetic fields of magnitude 4 xx 10^(5) V/m and 0.02 Wb//m^(2) respectively in meter per second is

An electron beam passes through crossed electric and magnetic fields of 3.4xx10^(4) Vm^(-1) and 2xx10^(-3)Wbm^(-2) respectively. If the path of the beam remains undeviated, calculate the speed of the electrons . If the electric field is removed, what will be the radius of the circular path described by the electrons ?

In a Thomson set-up for the demination of e/m, electrons accelerated by 2.5 kV enter the region of crossed electric and magnetic fields of strengths 3.6 xx 10^(4) Vm^(-1) and 1.2 xx 10^(-3) T respectively and through undeflected. The meaured value of e//m of the electron is equal to

A narrow electron beam passes undeviated through an electric field E = 3 xx 10^(4) "volt"//m and an overlapping magnetic field B = 2 xx 10^(-3) Weber//m^(2) . If electric field and magnetic field are mutually perpendicular. The speed of the electron is

The magnetic induction and magnetising field in a sample of magnetic material are 1.0 Wb m^-2 and 2 xx 10^3 A m^-1 respectively. Find magnetic permeability

A rod of 10 cm length is moving perpendicular to uniform magnetic field of intensity 5 xx 10^(-4) "Wb/m"^2 . If the acceleration of the rod is 5 "m/s"^2 , then the rate of increase of induced emf is ….

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?

The magnetic induction and magnetising field in a sample of magnetic material are 1.0 Wb m^-2 and 2 xx 10^3 A m^-1 respectively. Find magnetic susceptibility

A rod of 5m length is moving perpendicular to uniform magnetic field of intensity 2 xx 10^(-4) "Wb/m"^2 . If the acceleration of rod is 2ms^(-2) , th rate of increase of the induced emf is____