Voltage, current and resistance are the fundamental building blocks of understanding electrical circuits. Their relationship can be explained with the help of Ohm’s Law which describes how the ...

The symbol for resistance is R, it is measured in ohms \((\Omega )\). The symbol for current is I, it is measured in amperes \((A)\).

Electrical energy is easy to move from place ... The symbol for resistance is \(R\), it is measured in Ohms \((Ω)\). The symbol for power is \(P\), it is measured in Watts (\(W\)).

I'll try to explain all this as simply as possible since the technical answer of "ohm is the unit of electrical resistance" isn't particularly helpful for anyone not currently in high school science.