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The three basic principles for this tutorial can be explained using electrons, or more specifically, the charge they create: Voltage is the difference in charge between two points. Current is the rate at which charge is flowing. Resistance is a material's tendency to resist the flow of charge (current)
Current is the flow of electrons
Voltage is the force helping the electrons to move
voltage is potential difference and current is flow of electrons.
V=IR, v for voltage , i = current , R for resistance , V is directly propositional to current,
Voltage is the pressure which makes the electron to flow. While flow of these electrons is called current.
Voltage - Voltage is the electric potential difference between two points in an electric field. It is equal to the work done per unit charge against a static electric field to move the unit charge from one point to another.
Current - Current is basically the rate of the flow of electric charge generally through a medium, i.e. current i = dq/dt.Where 'q' represents charge and 't' represents time.
In D.C. circuits if a suitable medium is present, voltage difference causes the flow of charge i.e current. Ohm's law defines that for a fixed medium(same material, same cross section, same length, same temperature), the ratio of voltage and current is constant. This ratio is called resistance and represented by 'R=V/I', where 'V' represents voltage and 'I' represents current.
at kirchoff's voltage law said,
V=IR that means terminal voltage is directly proportional to the flow of electrons with resistance....
Easy way to understand the difference between current and voltage is to take an example of a passenger vehicle where;current is the passenger and the vehicle which takes the current is the voltage .
To understand the difference between the two lets take an example...
Consider a pipe with water flowing inside it. Now in comparison to current voltage analogy, the WATER that is flowing through the pipe is equivalent to the current in a wire and the PRESSURE with which the water is flowing through it is equivalent to the voltage of that current.
The electrons of higher potential will flow to lower potential
The potential difference is voltage
The flow of electrons is current :)
Current requires a resistance for electrons to move or flow while voltage is a difference in potential usually from higher to a low potential
Mathematically it can be deduced that I =V/R,While V=I*R,WHERE I leads the Voltage by 90 degress in an AC cicurit and Voltage Lags
Ask this from your child or child in a family
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