Potential Difference and Electromotive Force (Leaving Cert Physics): Quizzes

Energy lost by one coulomb

Joule per coulomb ($\text{J C}^{-1}$)

Converts to heat energy

4 V

460 W

They add up: $V = V_1 + V_2 + V_3$

Same across all: $V = V_1 = V_2$

In parallel with component

Energy given to each coulomb

No, it's a voltage

12 V

4.5 V