Analogies of Ohm’s Law

What is Ohm’s law?

Ohm’s law states that a current through a conductor between two points is directly proportional to the voltage across all points. By introducing the consistency of equality, and resistance, one reaches the standard mathematical scale that defines this relationship.

Circuit analysis 

Each quote is quoted from specific sources as a descriptive relationship to Ohm’s law, or all three are quoted,  or based on the rating form,  or even both do not match Ohm’s original statement, which can sometimes be given. 

The equation fluctuations may be represented by a triangle, in which V (voltage) is set at the top, I (current) is set at the left, and R (resistance) is set at the right. The divider between the upper and lower sections indicates a split.

V=IR

This is the original equation representing ohm’s law 

Where, 

R is Resistance 

V is voltage 

I is current 

This equation is used to solve all kinds of problems based on circuits transformers. This is a key formula for students studying electronic engineering. 

Let’s look into some analogies of Ohm’s law,

The analogies started with the water circuit 

What is a water circuit? Explain its apparatus. 

The water circuit is the circuit that is used in saunas and hot water tubs that allow us to enjoy hot water using electric current. 

Let’s talk about the apparatus. The water circuit board is positioned vertically. The electric motor, which drives the water pump, is connected to flexible power supply terminals. Tubes filled with water: a small amount of fluorescein or a few drops of methyl orange can be added to make the water more visible. Water flows easily should. The pump will drive water around the circuit board of the glass tube connected to the board. The pressure depends on the voltage used by the engine.

Sometimes, the tube breaks. These two parts represent different resistance: one tube has a better drill than the other. Clips allow one or more categories to be opened simultaneously: thus, a different ‘opposition’ effect can be seen.

The pressure gauge consists of a connected U-tube and is filled with coloured water.

This is the basic apparatus that then uses current to generate hot water. 

Now about the main analogy. 

The hydraulic analogy or otherwise ‘water-pipe analogy.’

The hydraulic analogy is sometimes used to describe Ohm’s law. Water pressure, measured in pascal (or PSI), is an analogue of voltage because establishing the difference in water pressure between two points through a (horizontal) pipe causes water to flow.

Ohm’s law also makes sense when you use it in a water and pipe model. If we have a water pump that uses a pressure (voltage) to push water near the “current” circuit (limit), we can model how the three variants relate.

• If the water flow resistance remains the same and the pump pressure rises, the flow rate should increase.
• In another case, if pressure is the same while the resistance increases, then the flow rate eventually decreases 
• If the flow rate is the same and resistance decreases, then the pressure in the pump decreases.

The hydraulic analogy of Ohm’s law is used to explain the blood flow through the circulatory system of the human body. 

From the equation given above, there are some normal analogies we can make, which are ;

V=IR

So here, we can see V is directly proportional to I. Hence we can say that if the voltage increases current also increases. These are general assumptions because, in some cases, that may change. 

Similarly, V is directly proportional to R; we can say that when voltage increases, resistance also increases or vice versa. 

In case of resistance and current are inversely proportional to each other. So, if the current increases, resistance decreases and vice versa. 

Voltage Power also can be related. 

Conclusion

We can conclude by saying that now we know what Ohm’s law is and got an idea about what analogies were made. As we have a brief idea of what this is now, we’ll be able to not only understand higher topics but also solve problems accordingly.