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Gauss' law (K.F. Gauss):
The electric flux by a closed surface is proportional to the algebraic sum of electric charges contained in that closed surface; in differential form,
div E = rho,
where rho refer to the charge density.
Rules to verify how many significant numbers has in a calculated quantity: 1. All nonzero digits are significant. As like 457 cm has three significant values; 0.25 g has two si
Water is draining from tank A to tank B. The elevation difference between the two tanks is 10 m. The pipe connecting the two tanks has a sudden-expansion section as shown. The cros
The mass of a mol of proton and electron is: (1) 6.023x 10 23 g (2) 1.008g and 0.55mg (3) 9.1x 10 -28 kg (4) 2gm Ans: (2) 1.008g and 0.55mg
What are the conditions to get interference pattern having good contrast in young's double slit experiment
How can electricity make magnetic fields? In 1820, Oersted discovered that an electric current can produce a magnetic field. He happened to notice a compass move when he conn
Q. Illustrates the evidence is there supporting the Big Bang theory? Answer:- In brief the universe is expanding. Each of the galaxies we have observed that are utmost awa
Q. A capacitor of capacitance 2 μF is in an ac circuit of frequency 1000 Hz. If the rms value of the applied emf is 10 V, find the effective current flowing through the circuit.
calculate the acceleratio due to gravity on planet mercury if mass = 2.99 x 10 9to the power 23)kg and radius = 2.42 x 10( to the power 6) metres.
It's working is based on the detail that if a beam of electron is subjected to the crossed electric field and magnetic field , it experiences a force because of each field. In ca
Define Grand Lunar Canals (Moscow Phys-Tech)? In one of his book, H. G. Wells illustrate an encounter of amateur earthling astronauts with a lunar civilization living in very d
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