The difference in potential between the cathode and anode of a spark plug is 14700 v. what energy does the electron give up as it passes between the electrodes? answer in units of j.
The energy the electron gives up passing between the electrodes is equal to the product between its charge and the potential difference between the electrodes: [tex]\Delta U = e \Delta V[/tex] where e is the electron charge [tex]\Delta V[/tex] is the potential difference
Plugging numbers into the equation, we find that the electron gives up is [tex]\Delta U = (1.6 \cdot 10^{-19} C)(14700 V)=2.35 \cdot 10^{-15} J[/tex]
