The force on a charge moving with velocity v in a magnetic field B is half of the maximum force when the angle between v and B is

The maximum kinetic energy of the photoelectron emitted from a metal surface is 0.34eV. If the work function of the metal surface is 1.83eV,find the stopping potential.

When an alternating current given by I = 10sin (120π)t passes through a 12Ω resistor, the power dissipated in the resistor is

In a semi conductor junction diode, as the depletion or barrier layer is forward-biased, the layer

The major difference between a pure semiconductor and a pure metal is that