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?
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Answer
Perform an activity to show that in series combination of resistors, same current flows through each resistor.
- Connect three resistors of resistances R1 = 1Ω, R2 = 2Ω and R3 = 3Ω in series.
- Connect the series combination of resistors with a battery of 6V, a plug key K and an ammeter A as shown in figure.
- Note the reading of ammeter after plugging the key. Let it be I.
- Now disconnect ammeter and connect it in between the resistors R1 and R2 as shown in figure.
- Again plug the key and note the reading of ammeter. It is found that again it is I.
- Now disconnect the ammeter and connect it in between the resistors R2 and R3.
- Plug the key and note the reading of ammeter. Again it is found to be I.
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