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Static Electricity
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Static Electricity Notes for Class 11 - 12
Coulomb's Law
The electrostatic force between two point charges is directly proportional to the product of two charges and inversely proportional to the square of the distance between them. The force acts the line joining the two charges and its value depends on the nature of the medium.
Electric field
The area in which there is the effect of a charge is called electric field.
Intensity of electric field
If a positive unit charge is placed inside an electric field, the force acting on it is called intensity of electric field.
Equipotential plane
If all the points on a plane have the same potential, the plane is called an equipotential plane.
Dipole moment
The product of distance between two charges and magnitude of any of two charges is called dipole moment.
Quantization of charge
Atom and such objects can have charge which is equal to the integral multiple of minimum charges. This is called quantization of charge.
Dielectric constant
Ratio of acting forces between two charges separated by a distance in vaccum and acting forces between the two charges at the same distance in any other medium is constant. This constant is called dielectric constant.
Capacitance
The amount of charge required to increase the potential of any conductor by 1 V is called capacitance of that conductor.
Equivalent capacitance
If two or more capacitors of a combination are replaced with one capacitor so that the amount of charge and potential do not change, the capacitance of the single capacitor is called equivalent capacitance.
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