1. A strand of 10 lights is plugged into an outlet. How can you determine if the lights are connected in series or parallel?
A) Unscrew one light. If the other lights stay on, it's a series circuit
B) Unplug the strand. If the first light stays on, it's a series circuit
C) Unscrew one light. If the other lights turn off, it's a series circuit
D) Cut the strand in half. If the plugged in half stays on, it's a series circuit
In series circuit ,one end attached to another and so on.
If at one end power break down it will not now go to second begning.
Same is not case in parallel arrangements.