Appreciate the help thank you!
A 200 W light bulb is
powered from a 120 Vrms line voltage, and is switched on and off with a S4006LS SCR.
- Prove that the light bulb's nominal resistance is 72 Ω.
- When the SCR is on continuously, calculate the rms current through the light bulb.
- Calculate the maximum instantaneous voltage across the SCR when it is off.