A full-wave rectifier circuit having centre-tapped transformer has 500 turns in its primary winding, 25 turns from one end of the secondary winding to the centre tap and 20 turns from the other end of secondary winding to the centre tap. Assume both the diodes have V?=0 V and dynamic resistance rd = 1 Ohm. An ac supply of 230 V (rms), 50 Hz is fed to the primary and the rectifier supplies a full-load dc current of 500 mA. Determine
a. The dc output voltage at full load
b. The percentage load regulation and
c. The rms voltage across the full load.