Question

How will you infer with the help of an experiment that the same current flows through every part of the circuit containing three resistances in series connected to a battery?

Answer 1

Collect three resistors R₁, R₂, R₃ in series to make the circuit. 

• Use ammeterto see the potential difference of three resistors.
• Remove R₁ and take the reading of potential difference of R₂ and R₃ 
• Remove R₂ and take the reading of potential difference of R₁ and R₃

Observation: 

Ammeter reading was same in each case which shows same potential difference across three resistors connected in series.