I am trying to simplify the electronics fundamentals. Maybe they are easy for you but they aren't easy for me.
Okay,
so circuit theory is based on two basic laws.
1. law of conservation of energy
2. law of conservation of charge
Electric potential at any point is defined as the amount of work required to bring a unit positive charge from infinity to that point.
but the word "infinity" doesn't make sense to me. So I'll take electric potential as a relative quantity. Just as length we need to choose a reference point in order to define potential.
now potential = energy/charge = work/charge
In a circuit where resistors are connected in series with a voltage source (a battery, i'll take the negative terminal as a reference) , potential drops on every resistor. which mean that energy/charge also decrease. so why current which is rate of flow of charge remain the same?
energy is dissipated across resistor in the form of heat. according to law of conservation of energy, the energy is decreasing. according of law of conservation of charge, electrons can't be destroyed. So electrons should slow down which in turn should decrease current.
Okay,
so circuit theory is based on two basic laws.
1. law of conservation of energy
2. law of conservation of charge
Electric potential at any point is defined as the amount of work required to bring a unit positive charge from infinity to that point.
but the word "infinity" doesn't make sense to me. So I'll take electric potential as a relative quantity. Just as length we need to choose a reference point in order to define potential.
now potential = energy/charge = work/charge
In a circuit where resistors are connected in series with a voltage source (a battery, i'll take the negative terminal as a reference) , potential drops on every resistor. which mean that energy/charge also decrease. so why current which is rate of flow of charge remain the same?
energy is dissipated across resistor in the form of heat. according to law of conservation of energy, the energy is decreasing. according of law of conservation of charge, electrons can't be destroyed. So electrons should slow down which in turn should decrease current.
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