V proportional to I or I proportional to V in Ohm’s Law?
Why we used I proportional to V?
Can we write V proportional to I also?
Both are ok. If we are changing the current and observing the voltage, then it is V∝ I
If we are changing the voltage and observing the current, then
In general, we write
the dependent variable proportional to the independent variable
dependent variable = the quantity measured by us
independent variable = the quantity fixed by us