# Physics 2: RC Circuits

What are the voltage drops across each capacitor? How much energy will capacitor C store?

The battery is 12 V

What are the charges and voltage drops across each capacitor?

What is the total energy stored by the 36 $\mu$F capacitor?

If the potential difference across the 20 $\mu$F capacitor is 12 V. What is the potential difference supplied by the battery? How much energy is stored in the 25 $\mu$F capacitor?

Find current and potential difference for each resistor.

Find the current flowing through the other two branches and the value of the resistor in the circuit below.

How much current flows through the 3 $\Omega$ resistor? The 4.5 $\Omega$ resistor? What is the value of $\Sigma$?

A circuit has the following R = 10 k$\Omega$, C = 25 $\mu$F, $\epsilon$ = 12 V.

How long will it take to charge the capacitor, C, to 10 V ?

How much current is flowing in the circuit at that time?

A circuit has the following R = 20 $\Omega$, C = 25 $\mu$F, $\Delta{V}_C$ = 10 V.

How long will it take for the charge to drop to one third its original value?