High School Physics › Understanding Resistance
You have a 1m long, 0.5cm diameter copper wire that has an electric current running through it. Which of the following would decrease the wire's overall resistivity?
An electric circuit is set up in series with five resistors. If the resistors remain the same, but the circuit is now set up with the resistors in parallel, how would this affect the total resistance?
When current in a circuit crosses a resistor, energy is lost. What form does this lost energy most commonly take?