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In a pure semiconductor, concentration of electrons in conduction band is equal to the concentration of holes in valence band. In the process of conduction when an electric field is applied, the electron moves in the opposite direction of the field and occupies the position of nearest hole, so that, a new hole is created in the place of electron.
This process of electron movement and hole movement continues in the semiconductor substance. In the applied electric field, electrons move towards positive terminal of the battery and hole moves towards negative terminal of the battery.
define non flow process
Molecules of a medium after absorbing incoming light radiations, sends them in all direction. This process is called as Scattering.
Explain electric potential at a point due to a point charge. Write its SI unit. Derive an expression for the electric potential at a point outside a charged sphere.
Q. Illustrate is negative mass antimatter? Answer:- It is false there is really no such thing as negative mass. Yet antimatter has mass which is always a positive (that is
Details about halls effect
A steel ring of mean diameter 120mm is uniformly woundwith 1500 turns of wire. When a current of 0.30A is passed by the coil a flux density of 1.5 T is set up in the steel.
Illustrate how plane polarized light obtained by refraction. Illustrate double refraction ( birefringence) of light. define Young's double slit experiment and give the required the
A particle with a charge of -1.5uC and a mass of 2.5x10-6kgis released from rest at point A and accelerates toward point B, Arriving there with a speed of 42m/s. (a) What is the po
Q. What does the MeV in MeV photon mean? Answer:- The MeV denotes million electron volts. It's a calculation of the energy the energy in the photon which is a quantum (or
A sled and its rider, with a total mass of 95 kg, are perched on top of a 25-m-tall hill. A second hill is 12 m tall (see the diagram below). The rider is given an initial push
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