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Joule's laws (J.P. Joule)
Joule's first law
The heat Q generated while a current I pass through a resistance R for a particular time t is given by following
Q = I2 R t
Joule's second law
The internal energy of an ideal gas is independent of its volume & pressure, depending on its temperature only.
Disadvantage of low Power Factor We know that P = V I cos φ, for particular amount of power at constant voltage, Power (P) and voltage (V) in the above expression of
The Law of Reflection While a ray of light strikes a plane mirror and the light ray reflects off the mirror. Reflection includes a change within direction of the light ray. The
Explain the Resonance of Sound in Strings Strings on musical instruments, like harps, are held still at both ends, that is why the standing waves have nodes at every end of the
The thrust developed to propel the jet ski shown in Fig is a result of water pumped through the vehicle and exiting as a high-speed water jet. For the conditions shown in the Fig,
monolithic transister fabrication
é How many types of breakdown ?
Inductors in dc circuits: If it is required to increases the value of inductance in a circuit, then two or more inductors may be connected in series. The total inductance then
Show the types of chromatic aberration. What do you understand by Fraunhoffer lines? Explain their origin.
A model to show the apparent path of the sun among the stars The signs of the zodiac are drawn in the correct order on a strip of paper about 60 cm long and 8 cm wide. The ends
what is the difference between cohesive energy and binding eneergy
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