How are AMPS calculated in an electrical circuit?

In an electrical circuit, amps (or amperage) are calculated using the relationship between power (measured in watts), voltage (measured in volts), and current (measured in amps). The formula that expresses this relationship is derived from Ohm's Law and is given as:

Amperage (A) = Power (W) / Voltage (V).

When you rearrange this formula, you can deduce that if you know the wattage (power) and the voltage of your circuit, you can easily calculate the current in amps by dividing the wattage by the voltage. Therefore, the correct calculation for finding amps is Watts divided by Volts.

Understanding this relationship is crucial for electricians and fire investigators, as knowing how to calculate current can help in assessing the safety of electrical installations and understanding potential fire hazards related to electrical equipment. The other choices do not represent the correct relationship among volts, watts, and amps, which is fundamental to electrical calculations.