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Coulomb's law (C. de Coulomb)
The primary law for electrostatics is analogues to Newton's law of universal gravitation. This states that the force among two point charges is proportional to the algebraic product of their respective charges in addition to proportional to the inverse square of the distance among them; mathematically specking,
F = 1/(4 pi epsilon0) (q Q/r2) e,
where q and Q refer to the strengths of the two charges, r refer the distance among the two, and e refer to a unit vector directed from the test charge to the second.
High resistive materials: The materials which have their resistivity 10 -8 to 10 -6 ohm-m come under this category. These materials are used for making resistance elements fo
Proton-neutron hypothesis
Give reasons for the following (i) Long distance radio broadcasts use short-wave bands. (ii) The small ozone layer on top of the stratosphere is crucial for human survival.
A boat travels 75 km southeast, then 56 km due east, then 25 km 30.0° north of east. a. Sketch the vector set on a N-E-S-W grid b. Find its net E-W part of displacement and
(a) Two 40 g ice cubes are dropped into 220 g of water in a thermally insulated container. If the water was initially at25°C, and the ice came directly from a freezer at -15°C,what
What is ground wave?
two travelling sinusoidal waves are described by the wave function, y=55
why does earth rotate??
#questi1. A sound with a frequency of 261.6 Hz travels through water at a speed of 1435 m/s. What is the wavelength of the wave? a. 1.83 x 10 -1 m b. 3.753 x 10 5 m c. 5.486 m
Define Ideal Gas in One-Dimensional Potential? An ideal gas of particles, each of mass m at temperature ?? is subjected to an external force whose potential energy has the f
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