Amps can be determined by which of the following formulas?

To determine amps in an electrical circuit, it's essential to understand the relationships between voltage (E), resistance (R), and power (W) in accordance with Ohm's Law and the power equation.

The first formula, E/R, is derived from Ohm's Law, which states that the current (I, measured in amps) is equal to voltage (E) divided by resistance (R). This is a fundamental equation in electrical theory and directly provides the number of amps flowing in a circuit based on the voltage and resistance values.

The second formula, W/E, stems from the power formula, which states that power (W, measured in watts) is equal to voltage (E) multiplied by current (I). Rearranging this equation to solve for current gives us I = W/E, which allows us to find amperes based on the known power and voltage.

The third formula, the square root of W/R, also provides a valid method for calculating current. This comes from manipulating the power equation and Ohm's Law together. By substituting Ohm's Law into the power formula, you can derive that I = √(W/R), giving yet another way to find amperage based on power and resistance.

Since all three formulas