Question

1. need to control the intensity of bulb like sometimes you need it to be bright and sometimes a bit low light. What will you change in the circuit?

Answer 1

Answer:

An incandescent bulb's brightness depends on a whole lot on resistance. The higher the resistance to current in the wiring, circuitry, and bulb, the lower will be the current, lower the power, and lower the brightness. Conversely, lower resistance means more brightness.