A series circuit. The ammeter is between two lamps. Which lamp's current is measured by the ammeter

A series circuit. The ammeter is between two lamps. Which lamp's current is measured by the ammeter

The current through the two lamps is measured, and the current through the two lamps is equal

In the circuit shown in the figure, which bulb current is measured by ammeter A2? （　　）
A. L1B. L2C. Total current of L1 and L2 in parallel D. current of L1 and L2 in series

As shown in the figure, two bulbs are connected in parallel, and the equivalent circuit diagram is as follows: as shown in the figure, ammeter A2 is on the main road, measuring the total current passing through the two bulbs

What should be paid attention to when using ammeter to measure current?

1. Connection method: must use series connection method, if parallel connection will burn the ammeter
2. Select the range: the range should be appropriate, and the current beyond the range should not be measured
3. Polarity: when measuring the current of the DC circuit, the current must flow in from the "+" terminal of the ammeter and flow out from the auxiliary terminal

If an ammeter is connected to a certain part of the parallel circuit, which consumer's current is measured by the ammeter
At the branch point

At the branch point, it is the current of the appliance connected with the ammeter