Answer :
To tell the truth im 50% sure of my answer but ill give it anyway based on the info here if he adds more bulbs since series circuit all are connected to one route then those would shine Way more dimly while apparel dosent share the same circuit (I think) then the brightness for that will stay constant
Adding three light bulbs in a series circuit will decreases the brightness of the bulbs while when the bulbs are added to a parallel circuit there is no difference.
What is a Circuit?
This is defined as a path along which the whole current flows through each component.
In a series circuit, the voltage is equally distributed among all of the bulbs which is why there is a decrease in the brightness of bulbs in it.
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