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Silicon has 1.45 x 1010 free electrons/cm3 at room temperature. If you wanted to have 3x106 as many electrons from arsenic doping as thermal free electrons from silicon at room temperature.
How many arsenic atoms should there be for each silicon atom?
The ratio of specific charge of a proton and an alfa-particle is: (1) 2 : 1 (2) 1 : 2 (3) 1 : 4 (4) 1 : 1 Ans:(1) 2 : 1
If two forces P & Q act at such an angle that the resultant force r=p. Then show that if P is doubled the new resultant is at right angle Q and it's value is ( 4P 2 -Q 2 ) 1/2
a 10 m radius of thin spherical tank is to be used to store gas if the wall thickness of the tank is 10 mm and the 125 mpa the maximum possible gas pressure neglecting the radial s
What is the Principal value branch of i i Ans) Principal value branch of ii=e-π/2
What the angles among the direction are of travel of light the electric field and the associated magnetic field? Answer: The magnetic field created by a changing electric
what is virtual displacement?and how is it different from actual displacement?
Q. Illustrates the evidence is there supporting the Big Bang theory? Answer:- In brief the universe is expanding. Each of the galaxies we have observed that are utmost awa
a body is thrown horizontally with a velocity of u from the top of a tower. the displacement of the stone when the horizontal and vertical velocities are equal is
If small test charge is taken as positive than why measured value of electric intensity be somewhat less than the actual value of elctric intensity and vica versa
Organ pipes are the musical instruments which are used for making musical sound by blowing air into the line. Longitudinal stationary pulses are created on account of superimpositi
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