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What is a P-N junction? How does it behave under forward and reverse bias?
Describe with the help of circuit diagrams.
Who shared the Nobel Prize in Physics in 1909 with Guglielmo Marconi for his contribution to the development of wireless telegraphy? Ans: (Carl Ferdinand) Braun shared the N
Q Define threshold frequency? The minimum frequency of incident radiation lower which the photoelectric emission isn't possible completely but high the intensity of incident r
Will we always see a difference in brightness along an optic? Not essentially so. The human imagine system appreciates illuminance grades into a logarithmic fashion and when th
LENZ’S LAW A change of flux in a closed circuit induces an emf and sets up a current. The direction of this current is such that its magnetic field tends to oppose the c
SPEED: The distance covered by a body in unit time is known as speed. It is represented by V.
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 conductor moves with a velocity of 20m/s at an angle of (a) 90 ? (b) 45 ? (c) 30 ? , to a magnetic field produced among two square-faced poles of side length 2.5cm. If the
I WANT SHORT THEORY OF DEFLECTION MANGNETOMETER TAN A& TAN B
describe the construction and working of a Nicol prism.discuss how you obtain a plane polarised beam with it?
defination of multples and sub multiples
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