Ohm's Law

Some basic electrical laws are so powerful and pervasive that they eventually become a state of knowledge.

Students have to write about ohm's law so repeatedly that they do not require memorizing them.

Professionals in this domain have these formulas engraved in their minds. The basic equation for analyzing any electric circuit is

V= I *R

It states that the electrical potential difference between two points in a circuit is equal to the product of the current flowing between these two points and a sum of the resistances of all devices present between the two points.

From ohm's law physics, students learn about the most amazing equation for solving electrical circuits commonly known as the औम law.

It serves as an investigatory project on ohm's law predicting the relationship between potential difference resistance and current.
The equation of ohm's law is expressed as

V= I/R

It is a basic rule of electricity for evaluating the current for a specific potential difference and resistance. This equation is a powerful tool for solving any kind of electrical circuit.

This equation clearly shows that two variables affect the amount of current flowing through a circuit.

The amount of current in a circuit is directly proportional to the potential difference across its ends and inversely proportional to the total resistance offered by the connected devices or external circuit. More battery voltage greater will be the current.

Similarly greater the resistance lesser will be the current. The flow of charge will be maximum when the battery voltage is more in comparison to the resistance.

To be specific battery voltage will increase by two-fold times if there is a two-fold increase in current. On the other hand, if the resistance increases the ohmic behavior will result in a decrease in current to half of the original amount.

Usually, the equation of law's full meaning is explained in physics labs with the help of a resistor, an ammeter, a battery pack, and a voltmeter. An ammeter is a device that can measure the current in a circuit.

Likewise of a voltmeter is a device that can measure the potential difference across a circuit when the probes are touched at the two points.

Changing the number of cells in the battery pack allows creating ohm energy across the external circuit. The voltmeter helps in determining potential differences and the v ir calculator is used for measuring the current. 

Voltage, Current, and Resistance

An electric circuit comprises a conductive path that allows the flow of electric charge. This constant movement of electric charges by the conductors in the circuit is termed the current in-law relationship chart. Sometimes it is also referred to as ‘flow’ similar to the flow of liquid through a pipe.

The force responsible for the movement of carrier charges is called voltage.

Voltage is the accurate measure of potential energy that is flowing between two points. When a specific amount of voltage is flowing in a circuit it is termed as potential energy.

It is the energy necessary for moving charge carriers from one point in the circuit to two others.

Without a difference of charge between two points voltage has no significance. 
Currently, it moves through the conducting path and results in some amount of friction or opposition. This opposing force is termed resistance.

The amount of current flowing through a circuit is relative to the amount of voltage and resistance in the circuit that will restrict the flow of current.

Units of Measurement Volt, Amp, and Ohm

For creating meaningful statements and equations with these quantities one needs to be able to quantify these entities.

The symbol for each quantity uses standard alphabetical letters like in an algebraic equation.

Each unit is named after a famous scientist in this field.

‘R’ stands for resistance and ‘V’ for voltage.

‘I’ stand for the current which also represents the intensity of the flow of charge. ω meaning ohm. In some equations, the symbol for voltage is ‘E’ which signifies electromotive force.  

All these symbols are usually written in capital letters, in answer today, the quantity is written using a small letter to describe a small period.