Please tell the hell is potential difference and EMF and the difference between the both and tell what’s Voltage
Explain like i am 5 🙂
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They are all essentially the same thing.
Let’s compare it to gravity. U = mgh (gravitational potential energy) and U = qV (electrical potential energy)
Voltage in this case is the electrical potential, where as gh is the gravitational potential. Voltage has units of J/C, gh has units of J/kg
If we compare it to water in a pipe, the pressure is the driving force behind the flow, just like voltage is the driving force behind the current. Pressure can have units of J/m^3 , and flow has units of m^3 /s where as voltage and current are J/C and C/s
It’s just a measure of how charges will be affected in an electric field regardless of the magnitude of its own charge
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