Electromotive force:
The amount of energy supplied by the battery in pushing one
coulomb of charge ( electrons) from its positive to its negative terminal
through battery is known as the Electromotive force.
If one end A of a conductor is connected to positive
terminal of a battery and the other end B is connected to negative terminal of
battery,an electric field gets generated that leads to flow of current from A
to B ie from a Higher to a Lower Potential.
In order for the current flow to be continuous,chemical
processes in the battery pump the electrons to negative terminal B through the
battery when they reach terminal A.
The electromotive force is the energy supplied by battery in
pushing the electron from its positive to negative terminal.
Ohm”s Law:
The value of Current I passing through a conductor is
directly proportional to the potential difference V applied across its
ends,provided the temperature and the physical state of the conductor doesnot
change.
V = I R
Where V is the voltage applied across the conductor ends
I is the current flowing through the conductor
R is the Resistance of the conductor.
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