- #1
mirandab17
- 40
- 0
Hey there!
Having some difficulty with this question... is there any proportionality law between potential difference and velocity?
An electric charge accelerated from rest through a potential difference of 250 V reaches a speed of 9.4 x 10^6 m/s. What speed will this same charge reach if it is accelerated by a potential difference of 125 V?
So I started with conservation of energy. Ek = Ep.
(.5)mv^2 = Ue = qV
But how can I complete this without knowing its mass or quantity of charge?
Thanks in advance!
Having some difficulty with this question... is there any proportionality law between potential difference and velocity?
An electric charge accelerated from rest through a potential difference of 250 V reaches a speed of 9.4 x 10^6 m/s. What speed will this same charge reach if it is accelerated by a potential difference of 125 V?
So I started with conservation of energy. Ek = Ep.
(.5)mv^2 = Ue = qV
But how can I complete this without knowing its mass or quantity of charge?
Thanks in advance!