When an electrical student start his study or he select the
electrical technology that he/she will make his future in electrical
technology. In first book he/she face a law which is called

**ohm’s law**which very important law. Because using this law a electrical student can do calculation of many electrical circuit example, but many people learn the ohm’s law just for solving example which given in book or paper but can not use it in real work.
Every one know that the ohm law is important for electrical
student and every one know that ohm 's law is too simple to learn but many student can
not use it real work, my mean’s that they did not understand completely the
ohm law. Today in this article we will disuse the ohm ‘s law and it’s
formulas with complete example which will make you completely understood.

## Ohm’s Law Explanation

In the electric circuit, the current (I) is directly
proportional to the appalled voltage and inversely proportional to the total
circuit resistances. This law is called ohm’s law which was make/explained by Bavarian mathematician and physicist Dr. Georg Ohm.

In simple words if the circuit current will high then
circuit voltage also high or we can said that current and voltage will have
relation ship between one another and if resistance will high then current and voltage will be
getting low.

### Formulas of Ohm’s Law

Current = potential difference/resistances OR I =
V/R OR Effect = Cause/Opposition

The above formulas -
is called ohm law formulas. We can apply these formulas on complete circuit
or a part of circuit. If we want to apply these formulas to complete circuit then
procedure is to divide the complete circuit current , complete circuit voltage
to complete circuit resistances.

OR

If you want to apply formulas on a part of circuit to find out the current then
procedure is to divide part
of voltage to the part of resistance.

For calculations we can use ohm’s law in three shapes which
are

**I=V/R (Current = voltage divided by resistance)**

**V=IR (Voltage = current multiplied by resistance)**

**R=V/I (Resistance = voltage divided by current)**

### Ohm's law Example Explanation

1. WE have circuit, in which resistance is 5 ohm and
applied voltage is 10 volts then how can we find out the current (I).

It’s simple using first formula I=V/R

In the circuit V is 10 and R is 5, then 10/5 = 2

So the total current of this circuit is 2A (2 Ampere).

2.
In above circuit we know that current is 2 and
resistance is 5 and want to find of circuit voltage then.

V= IR
which is V=IxR Or V= 2 x 5= 10V

Then the voltage of the circuit is 10 volts.

3.
And if we have volts and current values and
wants to find out the total resistance then

Volts is 10 and current is 2 Which means
that

R=V/I Or R=10/2 = 5-

So the total resistance of circuit is 5
ohms.

You notes that each example find out the
correct value it’s means the calculations is right. Note that this law can only apply on DC (Direct Current).

#### Message

I hope now you completely understood the ohm’s law and know
you can use this law in practically works and circuit. If you got some thing
helpful then kindly share this with your friends. Also do comments for about ohm law examples in below comments section.

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