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

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 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

A beam of electrons passes through crossed electric and magnetic fields E = 7.2 xx 10^6 NC^-1 and B = 2.4 T . If the beam goes undeviated, the velocity of electrons is

A beam of alpha -particles passes undeflected through crossed electric and magnetic fields with E = 6.6 xx 10^6 Nc^-1 and B = 1.2 tesla. The speed of alpha -particles 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 ?

Electrons which have been accelerated by a potential difference of 1000 V enter co-terminus electric and magnetic fields of strengths 20 V//cm and 1 G respectively as in the Thomson's experiment. Estimate the e/m and the speed fo the electrons if they move undeviated through this system.

Electrons taveling at a velocity of 2.4xx10^(6) ms^(-1) enter a region of crossed electric and magnetic fields as shoen in Fig. If the electric field is 3.0xx10^(6) Vm and the flux density of the magnetic field is 1.5 T, the electrons upon entering the region of the crossed fields will

Electrons taveling at a velocity of 2.4xx10^(6) ms^(-1) enter a region of crossed electric and magnetic fields as shoen in Fig. If the electric field is 3.0xx10^(6) Vm and the flux density of the magnetic field is 1.5 T, the electrons upon entering the region of the crossed fields will

In Thomson's experiment to determine e/m of an electron, it is found that an electron beam having kinetic energy of 45.5 eV remains undeflected, when subjected to crossed electric and magnetic fields. If E=1xx10^(3)Vm^(-1) , the value of B is (mass of the electron is 9.1xx10^(-31)kg )

What is the magnitude of acceleration of an electron of speed 2.5xx10^(6)ms^(-1) in a magnetic field of 2.0 G , given that its e//m=1.76xx10^(11)Ckg^(-1) .