The Product Formula Chart Aid: P = A × B
A Learning and Memorization Aid
A lot of mathematical formulas, basic relationships in physics and other applications are often in the form of:
P = A × B
where P is the product of two factors, A and B.
Examples include:
Distance: distance = velocity × time
Ohm’s Law: power = current × voltage
Newton’s Second Law: force = mass × acceleration
A chart in a shape of a circle (some people use a triangle) can be used to illustrate the relationship between the three variables. I see charts of this time in various math books and videos applied to many applications. An example is Ohm's Law as illustrated by Electrician U (skip to https://youtu.be/-oHzc_DbaGw?t=17).
Going across means multiply, while vertically means divide.
P = A × B
A = P ÷ B
B = P ÷ A
Hope you find this helpful,
Eddie
Source:
Electrician U. "5 Formulas Electricians Should Have Memorized!" March 15, 2023. https://www.youtube.com/watch?v=-oHzc_DbaGw. Accessed May 27, 2025
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