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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.
12 joule of work has to be completed against an existing electric field to take a charge of 0.01 C from A and B. How much is the potential difference VB-VA.
Illustrate briefly the significance of entropy? Determine the work done when 2 mole of an ideal gas expands isothermally and reversible from 10 atm. To 2 atm. Pressure at 27 0 C
what is the tension in the string when the block is lifted at a steady speed when the weight weighs 4.5N and the distance is 90cm
Explain Non-Uniform velocity
Does sunlight reflected off a mirror enhance the temperature of the sun-rays? A standard planar mirror will not enhance the energy contained in the rays that reflect off it. In
How a CPH products? Answer; no time has passing of a CPH. Thus, CPH exists and never decay.
An electric bulb is rated 220 V and 100 W.When it is operated on 110 V, the power consumed will be. Ans) P=V*I I will be same in both cases so P1=V1*I P2=V2*I Dividing both equati
The given circuit diagram shows a series LCR circuit linked to a variable frequency 230 V source: (a) Verify the source frequency which drives the circuit in resonance. (b) G
give examples for how to calculate static resistance.
explain with the aid of a diagram what is meant by the moment of a force about point
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