Im trying to catch up on some revision but i have no clue how to do it, so ill just give the question.

A Circuit containing a transformer, Bridge rectifier, Reservoir capacitor and an additional resister/Capacitor (RC) filter circuit, is the be used to construct a dc power supply. the input voltage is 240V@ 50Hz.

The output voltage is to be 12V Dc and designed to drive a 1k Ohm load resistor.

Can anyone help me with this?