# How to charge a capacitor?

I think the formula for charging a capacitor is i=C(dV/dT)

Thanks

I read some where that you need a rising amount of volts to charge a capacitor, but I also always see around that you can just charge a capacitor on just a straight battery that is DC. I am very confused how you can and should charge a capacitor.

I think the formula for charging a capacitor is i=C(dV/dT)

Thanks

I think the formula for charging a capacitor is i=C(dV/dT)

Thanks

active| newest | oldestHowever, this thread is talking about using capacitors as energy storage elements to be later discharged in a very violent and entertaining manner.

whenever i connect a 9 volt battery to a capacitor (in parallel with a digital multimeter) .. and in series with a resistor .... It charges up to 9 volts .. but as i take out the battery and connect the two wires .. it directly goes to 0.01-0.05 in less than a second ...

why is that ? is this because the capacitor releases it charge in nanoseconds ?