A helium nucleus (charge +2e) moves through a potential difference deltaV= -0.300 kV. It's initial kinetic energy is 3.70 x 10-16 J. What is it's final kinetic energy?
A 2.2-μF capacitor is connected to a 8.4-V battery. What is the magnitude of the charge on each plate?
A 3.6-μF capacitor is connected to a 8.6-V battery. What is the magnitude of the charge on each plate?
If a capacitor has a capacitance of 10.2 μF and we wish to lower the potential diffence across the plates by 30.0 V, how much charge will we have to remove?