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Explain briefly, with the help of circuit diagram, how V - I characteristics of a p-n junction diode are obtained ii
(i) forward bias, and
(ii) reverse bias.
Illustrate the shape of the curves obtained.
(b) A semiconductor has equal electron and hole concentration of 6 x 108 /m3. On doping with certain impurity, electron concentration increases to 9 X1012 /m3.
(i) Recognize the new semiconductor obtained after doping.
(ii) Calculate the new hole concentration
Illustrate ‘tan A ‘and ‘tan B' positions of a deflection magnetometer. Illustrate the theory to calculate magnetic moment of a bar magnet and Horizontal component of the earths
In plane transmission grating the width of the each slit is same to half of the opaque portion. Which order of spectra will be absent?
IMPULSE: When a force acts on a body for a very short time, the product of the force and the time for which the force acts, is called the impulse or impulse of force".
Question: Resultant of two forces P & Q is R. If Q is doubled R is doubled while if Q is reversed R is again doubled. Show that P:Q:R=(2) 1/2 :(3) 1/2 :(2) 1/2 .
Part A) Infra-Red (IR) Detectors: An IR detector has an impedance of Z= (400+j200) ? . . During design tests the detector current is measured as 4 µA. What is
Velocity: It is common to find people confusing the terms velocity and speed when describing how fast an object is moving. The difference is that speed is a scalar quantit
deflection magnetometer
Micro Waves: Micro waves are radio waves with shorter wavelength among 1mm to 300cm. Microwaves are used in Radar and microwave ovens.
A toroid having a square cross-section, 5.48cm on the side, and an inner radius of 19.4cm 450 turns and carries a current of 1.04A. (It is made up of a square solenoid instead of r
What is the change in temperature of water after falling over a 50.0-m-tall waterfall? Suppose that the water is at rest just before falling off and just after it reaches the b
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