The circuit diagram shows two identical lamps connected in parallel to a cell. Three ammeters, X, Y, and Z, are also connected in the circuit, as shown below.
Which statement about the current in X is correct?
It is equal to the current in Y and to the current in Z.
It is less than either the current in Y or the current in Z.
It is equal to the sum of the current in Y and the current in Z.
It is equal to the difference between the current in Y and the current in Z.
