In the circuit diagram below, all the ammeters are denoted by A. Which ammeter will have the higher reading?

The circuit shown on the right is a series circuit, as all components (resistors and ammeters A1, A2, A3, A4) are connected end-to-end in a single path.

In a series circuit, the electric current is the same at every point throughout the circuit. Ammeters measure the current flowing through them.

Since all ammeters (A1, A2, A3, A4) are in the same series circuit, the current passing through each of them will be identical.

As the current is the same at all points in a series circuit, none of the ammeters will have a reading that is lower than the others. They will all show the same value.

• Which ammeters will have the same reading? $\boxed{\text{A1, A2, A3, and A4}}$

• Which ammeters will have the lowest reading? $\boxed{\text{None, as all ammeters will have the same reading.}}$