The ammeter will read the same at points 1, 2 or 3. In series circuits, the current is the same through each component. The potential difference of the power supply is shared between the components.
If the resistance of any component in a series circuit changes, this will change the value of the current in the circuit.
7450 Expandable Dual 2-wide 2-input AND-OR-INVERT gates 7451 Dual 2-wide 2-input AND-OR-INVERT gates 7452 Expandable 4-wide AND-OR gates 7453 Expandable 4-wide 2-input AND-OR-INVERT gates 7454 4-wide ...