If we are talking about the movement of electrons as

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Current (I) is the rate at which a charge passes through a conductor's cross-section. charge carriers, then in fact, it is how many electrons pass through a conductor's cross-section per unit of time.


Electric voltage (U) is the difference in electric potential between paytm data points of an electric circuit, conductor or anything else. If the voltage value is different from zero, then when these two points are closed by a conductor, an electric current will arise in the latter until the potentials are equalized, in other words, until the voltage becomes zero.


Electrical resistance ® is the physical property of a conductor to prevent the passage of electric current. The higher the resistance, the less electric charge can pass through it, all other things being equal.
Resistance depends on the length of the conductor (l), the cross-sectional area of ​​the conductor (S), and the physical property of the material from which the conductor is made, called specific resistance (p):

In certain circles, you can often hear the phrase: "If you don't know Ohm's law, stay home."
And not in vain, because in our age, when it is no longer possible to imagine a minute without some kind of electronic device nearby, it would be useful for everyone to know such a simple law.

It looks like this:

That is, the current passing through a section of a circuit is equal to the ratio of the voltage between the ends of this circuit to the resistance of this same circuit.

It is important to understand that the current strength depends on the voltage and resistance, and not the other way around. That is, having a source of constant voltage of 14 V and connecting a load of a certain resistance to its terminals (a light bulb, a resistor, a device with some internal resistance, etc.), you will determine the current value.