One of the best ways to understand how current, voltage, and resistance work together is by using something called Ohm's Law.

Ohm’s Law is simple and says:

$V = IR$

In this equation:

• $V$ means voltage (the pressure of electricity),
• $I$ means current (the flow of electricity), and
• $R$ means resistance (what slows down the flow).

Graphs

• Voltage vs. Current Graph:

You can make a graph where you put voltage on the top (y-axis) and current on the bottom (x-axis).

The steepness of the line on this graph shows how much resistance there is ($R$).

• Circuit Diagrams:

These drawings show how different parts of an electrical circuit work together.

They help you see how electricity moves through resistors when there are different voltages.

Simulations

You can also use online simulators.

These tools let you change the voltage and resistance to see what happens to the current.

This makes the ideas more real and easier to understand!