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a) What is the magnitude of a point electric charge chosen so that the electric field because of it at a point 50 cm away has magnitude 2.0 NC¯¹ ?
(b) Get a mathematical expression for the magnetic field strength at the center of a circular coil carrying electric current?
(c) Illustrate the electronic configuration in the atomic structures of 'Ge' and 'Si' atoms. How can these be made 'P-type' and 'N- type' semi - conductors?
What is spontaneous emission? Explain in brief. Spontaneous emission: a. This is the process by that a light source as like an atom, molecule, nano-crystal or nucleus into a
limitations
An electron has momentum that is 90 % larger than its classical momentum. Find speed of electron. Classical momentum Relativistic momentum Here m is effective mass Given, Spe
When a person stands on a scale in an elevator at rest, the scale reads 800 newtons. When the elevator is allowed to fall freely with acceleration of gravity, the scale reads o
A copper wire whose diameter is 0.16 cm carries a steady current of 10 A. What is the current density of the wire?Also calculate the drift velocity of the electrons in copper.
A radioactive substance has a half life of 1 min. If one nuclei decays now , when will be next decay????
Spin-orbit effect An influence that causes atomic energy levels to be split since electrons have intrinsic angular momentum (spin) additionally to their extrinsic orbital angul
In a non-uniform magnetic material, these substances move from stronger parts of the field to the weaker parts.why?
Define the Working of The Television This leads to a technology that works to create the picture every time you turn on your television or your computer monitor. This same techno
state and explain pauli''s exclusion principle
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