V=IR
I=V/R=45/15000=3*10-3 A.
Power = VI joules
A 15.0 kΩ resistor is hooked up to a 45.0 V battery in a circuit with a switch.
a.) What is the current flowing through the resistor?
b.) What is the power dissipated by the resistor?
2 answers
Power = VI watts