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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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Gravitational Forces of the earth or Gravity, The gravitational force of the earth (or gravity) is responsible, A few facts about Lunar Tides, Newtons’s Universal Law of Gravitation, Properties of gravitational forces, Universal Gravitational Constant (G),

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  Gravitational Forces of the earth or Gravity A force is necessary to produce motion in a body. A body dropped from a height falls toward the earth. It indicates that the earth exerts a force of attraction (called gravity) on the body. In fact, the earth attracts all the object its centre. The force with which the earth pulls the object toward it is called the gravitational force of the earth or gravity. The gravitational force between the sun and the earth keeps the earth in uniform circular motion around the sun. The gravitational force of the earth (or gravity) is responsible - l  For holding the atmosphere above the earth. l  For the rain falling to the earth. l  For flow of water in the rivers. l  For keeping us firmly on the earth. l  For the revolution of moon around the earth, etc. The gravitational force between the earth and the moon causes tides in the sea. Think why tides are high during full moon and new moon day. A few facts about Lunar Tides...
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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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Kirchhoff’s Laws Kirchhoff’s Current Law (KCL) Kirchhoff’s Voltage Law (KVL) Kirchhoff’s Laws derivation

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                                Kirchhoff’s Laws        Kirchhoff’s Circuit Laws are two equalities that deal with the conservation of charge and energy in electrical circuits.   There basically two Kirchhoff’s Law :-   01.   Kirchhoff’s Current Law (KCL) - Based on principle of conservation of electric charge.   02.    Kirchhoff’s Voltage Law (KVL) - Based on principle of conservation of energy.                    Kirchhoff’s Current Law (KCL)         ⃝   The rule is also called Kirchhoff’s first law, Kirchhoff’s point rule, Kirchhoff’s junction rule (or nodal rule).   ⃝    It states that at the junction, sum of current entering the junction is equal to the...
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Faraday's Law, Faraday's laws derivation and faraday's Law application and lenz's law

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  Faraday’s Law of Electromagnetic induction :-   Great experiment physicist and chemist :-   1791- 1867 :-   Contribution to early electricity include:       - Invention of motor, Generator, and Transformer       - Electromagnetic Induction      - Laws of electrolysis : A method of separating bonded element and        Compounds by passing an current through them.   Electromotive Force (EMF) Produced by Changing Magnetic Field, 1 :-  A loop of wire is connected to a sensitive ammeter. :-   When a magnet is moved toward the loop, the ammeter deflects. Electromotive Force (EMF) Produced by Changing Magnetic Field, 2 :-   When the magnet is held stationary, there is no deflection of the ammeter. :-   Therefore, there is no induced current      :- Even though the magnet is in the loop.   Electromotive Force (...
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