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Keplers’s Laws of Planetary Motion, Kepler's Law, Law of Orbits, Law of Areas, Law of periods

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  Keplers’s Laws of Planetary Motion: 1 st law ( Law of Orbits ): Every planet moves around the sun in elliptical orbit with the sun at one of the foci of the elliptical orbit. 2 nd   law ( Law of Areas): The line joining the planet to the sun sweeps over equal areas in equal intervals of time.                                                             Area of SAB = Area of SCD  2 nd   law tells us that a planet does not move with constant speed around the sun. It speeds up while approaching the nearest point called ‘ perigee’ and slows downs while approaching the farthest point called ‘ apogee’. therefore, distance covered on the orbit with in the given interval of time at perigee is greater than that at apogee such that areas swept are equal. 3 rd Law ( Law of periods): The square of the time periods of revolution of...
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ohms law, ohms law formulas, what is ohms law, ohms law equations, ohms law definition, define ohms law, Non Ohmic Conductor

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                                                     Ohm’s Law The relationship between voltage (V), the current (I) and resistance (R)  in a d.c. circuit was first discovered by German scientist George Simon *Ohm. This relationship is called Ohm’s Law and may be stated as under :   The ratio of potential difference (V) between the end of a conductor to the current (I) flowing between them is constant, provided the physical condition ( e.g. temp. And pressure ) do not change i.e.                                   V/I  =  Constant = R Where R is the resistance of the conductor between the point considered. For example, if in Fig. (a) the voltage between points A and B volts and ...
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