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Uses of Transistor:
In a transistor the base current it plays a significant role in the collector current IC. A small change in the base current forms a large change in the collector current. Because of this characteristic a transistor can also be used as an amplifier in more electronic devices.
Q The resistance of a platinum wire at 0 o C is 4 Ω. What will be the resistance at 100 o C, if the temperature coefficient of resistance is 0.0038/ o C. Resistance at 100 o
N-Type Substances: When a small quantity of Arsenic or Phosphorous (group VA elements) is added to silicon or Germanium, it becomes good conductor of negative charges, such a s
SPEED: The distance covered by a body in unit time is known as speed. It is represented by V.
Q. What is Fraunhofer diffraction? a) The source as well as the screen are at infinite distances from the obstacle producing diffraction. b) The wave front suffer diffracti
Explain about the principle of acousting grating. Acousting Grating Principle: While ultrasonic waves are passed by a liquid, the density of the liquid varies layer by layer
A 30-g car rolls from a hill 12 cm high and is traveling at 154 cm/s as it travels along a 275 cm horizontal track. What is the momentum of the car?
Uncertainty principle (W. Heisenberg; 1927): A principle, central to quantum mechanics, that states two complementary parameters (such as position & momentum, energy & time, o
Consider the temperature distribution in a 1D flat plate, insulated at x = L and exposed to convective heat transfer at x = 0. On the axes below, sketch what the distribution looks
moment of inertia theory and easy diagrams
give some examples of like and unlike parallel forces
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