In the simple lamp dimmer shown here, the values of R and C are chosen to trigger the DIAC aftert/5 from the beginning of each half cycle. Draw the voltage wave forms across the load and TRIAC indicating timings of ON and OFF of the TRIAC, then calculate the RMS power delivered to the load (RL=100 Ohm), Vs 230Sinot Volt.[10 Marks]

Fig: 1

Fig: 2