Question

Your science teacher presents you with a circuit model that contains five light bulbs, a switch, and a 1.5-volt battery. The wires of the circuit are hidden from your view so that you cannot see how the bulbs are connected to the battery. How could you determine the type of circuit used in the model?
A.

If you unscrew one bulb and all the other bulbs stay lit, it is a parallel circuit because each bulb in a parallel circuit has its own path to the battery.


B.

If you unscrew one bulb and all the other bulbs stay lit, it is a series circuit because all bulbs in a series circuit have to share the same current.


C.

If all the bulbs are equal brightness, it is a parallel circuit because each bulb in a parallel circuit has its own path to the battery.


D.

If all the bulbs are equal brighness, it is a series circuit because each bulb in a series circuit has to share the same current.

Answer 1

Answer: i'm not fully sure but i think it's A.

Explanation: why do i think the answer is a? well the parallel circuit definition is a closed circuit in which the current divides into two or more paths before recombining to complete the circuit. which means that if you unscrew/remove one bulb it would still work, but in a series circuit it will not work, because if you remove one it turns all the bulbs off.