This parallel circuit contains a resistor and a lamp. A current of 5 A flows through the cell. The current splits at the junction. 3 A flows through the resistor and 2 A flows through the bulb.

A large-valued parallel resistor models the leakage through the ... using this part in the input circuit would be bad news – the desired 23 mVpp voltage ripple would be more like 463 mVpp ...