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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.
In physics, a radian per second is a unit of: a) Angular displacement b) Angular velocity c) Angular acceleration d) Angular momentum. Ans: A radian per
Q. Illustrate how do you find the refractive index of a liquid by using total internal reflection? Answer:- Using Snell's law n (1) = (n (2) x sin angle (2)) / sin angl
Diffraction pattern of a single slit of width 0.5 cm is formed by lens of focal length 40 cm. Calculate the distance between the first dark and the next bright fringe from the axis
The ratio of specific charge of a proton and an alfa-particle is: (1) 2 : 1 (2) 1 : 2 (3) 1 : 4 (4) 1 : 1 Ans:(1) 2 : 1
explain with the aid of a diagram what is meant by the moment of a force about point
self induction of a coil depends by observing the effect of coil when put in series
Can you give the S.I unit of electric displacement vector?
When a person stands on a scale in an elevator at rest, the scale reads 800 newtons. When the elevator is allowed to fall freely with acceleration of gravity, the scale reads o
Displacement related with a wave is given by y (x, t) = 0.1 cos(0.2x-2t). Where x y are in cm and ‘t' in second. Determine the wavelength, amplitude, frequency and velocity.
screw gauge mostly based on what theory
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