An electron is moving in electric field and magnetic field it will gain energy from
Electric field
Magnetic field
Both of these
None of these
(a)
What is value (magnitude) of electric field required for field emission ?
An electron initially at rest, is accelerated through a potential difference of $ 200$ volt, so that it acquires a velocity $8.4 \times {10^6}m/s.$ The value of $e/m$ of electron will be
Write name of universal and fundamental particle of matter.
In an electron gun, the electrons are accelerated by the potential $V$. If e is the charge and $m$ is the mass of an electron, then the maximum velocity of these electrons will be
Which of the following law is used in the Millikan's method for the determination of charge
Confusing about what to choose? Our team will schedule a demo shortly.
