Q) What is the current flow in a circuit with an applied voltage of 120 volts and a resistance of 80 ohms?
A) 1.5 amperes
NJ2X Notes:
Ohm's Law was discovered by Georg Simon Ohm and is worth committing to memory:
E = I * R
or by manipulating the terms algebraically:
I = E / R
or
R = E / I
In this example:
I = E / R
I = 120 volts / 80 ohms = 1.5 amperes
