A circuit with a single 25.0 omega resistor runs for 5.00 s. During this time10.0 C pass through a point in the circuit.
a. What is the power rating of this circuit?
b. How much energy is used?
come on, that's ohm, not omega. Omega is just the symbol used for the unit.
1A = 1C/s
P = I^2R = (10/5)^2 * 25 = 100 W
energy = power * time