What Is Ohm's Law Actually - Elucidate Techno

What is Ohm's Law?

"The potential difference between two points is proportional to the current through it."

What Is Ohm's Law Actually?

In general, Energy conversion rule is that the ratio of cause and opposition are equal to the effect of that energy.

What is Ohm's Law Mathematically?

Effect = Cause/ Opposition

So, the effect of energy depends on the cause of that energy divided by the opposition effect of that energy.

Remembering the water analogy, Same can be applied to the electric circuits,

Here,

Effect = Current,

Cause= Potential difference=Voltage,

Opposition= Resistance.

So,

What Is Ohm's Law - Equation

Suppose, the two terminals of a resistor are A and B. A the terminal is connected to a battery with a voltage V.  B terminal is connected to a ground (0 volts). The resistor has a resistance R.

Potential difference between A and B = (V-0) volt= V volt.

If the current flow is I then according to Ohm’s law,

Now, rearranging the equation,

Now, If  V= 1 volt and I = 1 amp current or 1A, then the equation will be,

This 1V/A  is called one ohm which is expressed as 1Ω

So, 1V/A=1Ω

So, According to Ohm's Law, what is the definition of one ohm?

If one ampere(1A) current flow through between two points which has a potential difference of one volt (1V), then the resistance of that material will be one ohm (1Ω).

A Mathematical Solution Based On Ohm's Law: 

If a battery has a voltage of 5V and if we want a current flow at the output of 1A. And for that, if we have added a resistor between battery and ground then what will be the resistance of that resistor?

Solution: 

Here, voltage = 5V  (NB: as ground voltage=zero therefore 5V-0V=5V)

current at the output= 1A.

So, resistance, R = V/A= (5/1)Ω = 5Ω

CLICK HERE TO KNOW ABOUT THREE FORMS OF OHMS LAW