Question

measuring current
which of the following shows how to correctly measure the current flow between the lightbulbs connected in series?

Explanation:

To measure current between two series lightbulbs, an ammeter must be connected in series within that specific segment of the circuit, breaking the connection between the bulbs and inserting the ammeter into the gap so current flows through it. The middle option correctly places the ammeter between the two lightbulbs, in series with that part of the circuit. The first option places the ammeter at the end of the circuit (not between bulbs), and the third option connects it incorrectly outside the series path between the bulbs.

Answer:

The middle diagram (ammeter connected between the two lightbulbs in series)