Question

all the street lights in a town needs to be on or off at the same time explain which type of circuit should be
parallel or series with reason PLZ

Answer 1

Explanation:

Almost all of the lights are connected in parallel, the only ones that are not connected in parallel are not installed by a professional or are deliberately placed in series for a specific reason (like most airfield lighting).

If you were to install lights in series then the A(amps or amount of electrons flowing) would be the same for every light bulb, the U(voltage or difference in potential) would be split over every light bulb in the line and the R(resistance or the “friction” the electrons experience) would be huge on every line of light bulbs.

As an example let’s say you align 100 Light bulbs(100Ω each) in series on a supply cable(240V). The resistance of this chain of light bulbs would be equal to the 100 times the resistance of one light bulb, this 1000Ω, the voltage would be 1/100 times the voltage of the supply cable for each light, thus 2,4V and the amps flowing through this line would be 0,24A. the Amps mostly determine how bright your light bulb will shine.

Now let’s say you align 100 Light bulbs(100Ω each) in parallel on a supply cable(240V). The Resistance would be 1Ω, wat is very low, the Voltage would be 240V per light bulb and the Amps would be 2,40A per light bulb, what is 100 times greater than in series which allows the light bulbs in parallel to shine brighter than the ones in series.