Question

which points need to be connected to complete a parallel circuit?
1 and 4
2 and 4
2 and 3
1 and 3

Explanation:

A parallel circuit requires each component to have separate, parallel paths connected to the same two ends of the power source. The first bulb is already connected between points 1 (negative terminal) and 2 (positive terminal). To complete the parallel circuit, the second bulb (connected to point 3) needs its other end (point 4) connected to the positive terminal of the battery, which is at point 2. This gives the second bulb its own parallel path from 1 to 3 to 4 to 2, matching the first bulb's path from 1 to 2.

Answer:

2 and 4