Twinkle, Twinkle little star,
P equates to I squared R.
Twinkle, Twinkle in the sky,
P is also E times I.
Twinkle, Twinkle can you see,
P equals R 'neath the square of E.
E is the same as I times R,
But E over I is also R.
E over R comes up with I,
This law is Ohms', I wonder why?
R is in ohms, E is in volts,
I is in amperes like lightning bolts.
So starkle, Starkle, little twink,
My mind's too muddled now to think.
All these equations may be true,
But it's pie in the sky,
Lest you know what to do.