实用方程
Equations Derived from Ohm's and Joule's Law
V = Voltage (in volts)
I = Current (in amperes)
R = Resistance (in ohms)
P = Power (in watts)

Equations Derived from Ohm's and Joule's Law
V = Voltage (in volts)
I = Current (in amperes)
R = Resistance (in ohms)
P = Power (in watts)
