A charge q=+5.11 mC (millicoulombs) has a mass of 0.00456 kg and is accelerated by two rings connected to a voltage source of 1378 volts.
What is the velocity of the charge when it passes through the second ring?
ℰ=Δφ=1378 V
mv²/2=qΔφ
v=sqrt(2qΔφ/m)=…