Here is an attempt to humanize the previous explanation of Ohm’s law:

Ohm’s law is super useful for understanding what’s going on in electrical circuits. It shows the relationship between voltage, current, and resistance. Let me break it down for you:

Voltage (V) is like electrical pressure. It’s what pushes the current through a circuit like water pressure pushes water through pipes.

Current (I) is the flow of electric charge. It’s measured in amps and indicates how much juice is flowing in the circuit.

Resistance (R) fights against the flow of current. It’s like friction for electrons moving through wires. Measured in ohms.

So here’s the basic equation:

V = I x R

Voltage equals Current times Resistance. If you increase voltage, you increase current (with the same resistance). If you increase resistance, you decrease current (with the same voltage). It’s a direct relationship between V and I, and an inverse between R and I.

We can rearrange the equation to find any one value:

Need current? Divide voltage by resistance:
I = V / R

Need voltage? Multiply current by resistance:
V = I x R

Need resistance? Divide voltage by current:
R = V / I

See how it works? Know any two values, and calculate the third. Super handy!

What else… there are formulas for power too:

Power (P) = Current (I) x Voltage (V)


Power = Current squared x Resistance
P = I^2 x R

This gives you power used in a circuit.

So in plain English, Ohm’s law lets you understand the relationship between power, current, and resistance. By plugging in numbers, you can analyze what’s going on in a circuit. It’s the foundation for working with basic electrical components.

Pretty nifty stuff! Let me know if you need any clarification on these concepts and formulas. Electrical engineering can seem intimidating but Ohm’s law is your friend.