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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
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A board with a number of green, blue and red coloured switches is normally seen near the entrance of each house . What is the purpose of this board? What is the difference a
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what is atom?
Beryllium copper alloy: It is obtained by alloying copper and beryllium. These alloys containing beryllium up to 2.75% can be produced in the form of sheet, rod, wire and tube. Be
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Current time base generator
why raise in ppotential is taken as positive
Calculating unknown resistances The current through the galvanometer (G) - a very sensitive ammeter, is reduced to zero by adjusting R 4 . The bridge is then said to be balanc
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