Question
An electron moves from one plate to another across which there is a potential difference of 2000 V.
a) Find the speed with which the electron
strikes the positive plate.
For this problem, I used the Potential difference equation: (2000)(1.60x10^-19)=3.2E-16=delta PE
I was going to use the equation PEi+KEi=KEf+PEf to find the speed of the electron. Is that right?
a) Find the speed with which the electron
strikes the positive plate.
For this problem, I used the Potential difference equation: (2000)(1.60x10^-19)=3.2E-16=delta PE
I was going to use the equation PEi+KEi=KEf+PEf to find the speed of the electron. Is that right?
Answers
drwls
Yes, that is correct, but remember that the initial Kinetic Energy (KEi) is zero in this case.
Once you know KEf, you can calculate V
Once you know KEf, you can calculate V