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a) A charge of 3X10-4 Coulomb at P (1, 2, 3) and a charge of -10-4 Coulomb at N (2, 0, 5) in a vacuum. We desire to measure the force exerted on second charge beacuse of first? b) A charge of -0.3 micro Coulomb is situated at A (25 , -30 , 15 ) ( in cm ), and a second charge of 0.5 micro Coulomb is at B ( -10 , 8 , 12 ) ( in cm ). Find electric field E at the origin (b) At point A ( 15 , 20 , 50 ) ( in cm )
What do you mean by Moseley's law? Explain briefly its importance. Explain the origin of X-ray spectra. Describe continuous and characteristic x-ray spectrum.
project
A boy throws a ball of mass 20 kg vertically upwards.It raises to a maximum height of 100 m.At what height will the kinetic energy be reduced to 70%?
A ray of light XY strikes a surface of a mirror ABCD at point P. a) Determine the path of the incident ray X-Y-P and the reflected ray P-Z and show this path in all views. (Hin
THE MAGNETIC CIRCUIT In an electric circuit, a current is established due to the existence of an electromotive force. In the same way, in a magnetic circuit, a flux is establis
what will happen if gravity becomes zero?is it possible in earth?
homework
Ferromagnetic Substance: A substance which behaves as a magnet in presence of a strong magnetic field is known as ferromagnetic substance. E.g. Iron, Nickel
What is the speed of a 232 kg satellite in an approximately circular orbit 645 km above the surface of Earth?
Ehrenfest paradox (Ehernfest, 1909) The special relativistic "paradox" including a quickly rotating disc. As any radial segment of the disc is perpendicular to the direction o
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