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Attraction & repulsion of atom:
It can be observed, that if two negatively charged bodies are brought together, there is a force of repulsion between them. Similarly if two positively charged bodies are brought together there is a force of repulsion. However, if a positively charged body is brought close to a negatively charged body, they attract each other. Hence:
Like Charges Repel, Unlike Charges Attract.
The force of attraction or repulsion is governed by an inverse square lawUNIT OF CHARGE
The charge on an electron is very small, therefore a more practical unit of charge called a Coulomb, has been chosen:
One Coulomb = 6.29 x 1018 electrons
What is the Specific Heat of Copper? Ans) 387 J/Kg. C or 0.0924 Cal/g.C
When a driver brakes an automobile, the friction between the brake drums and the brake shoes converts the car's kinetic energy to thermal energy. If a 1450 kg automobile traveling
Example like or unlike parallel forces
A tunning fork produces 4 beats per second with another tunning fork of frequency 256 Hz. The first one is now loaded with a little wax and the beat frequency is found to enhance t
What are the types of compound pendulum? ?
Energy is transferred in a one direction only. Example : Wave propagating in a stretched string.
What makes a flashlight suddenly become dim or bright when you shake it?
Alpha particles are nuclei of: a) Hydrogen b) Helium c) Oxygen d) Nitrogen Ans: Alpha particles are nuclei of helium.
Kirchoff's Voltage Law determines that the algebraic sum of the products of currents and resistances in every of the conductors in any closed path in a network plus the algebraic
what is elasticity
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