Two Metallic resistors are connected first in series and then in parallel across a d c supply. Plot of I - V graph is shown for the two cases. Which one represents a parallel combination of the resistors and why ?

Foundation

Physics Foundation

Ohms Law and Resistance

Question

LiveFree JEE Main Previous Year Online Papers Live Free JEE Advance Previous Year Online Papers

College PredictorLive

Know your College Admission Chances Based on your Rank/Percentile, Category and Home State.

Get your JEE Main Personalised Report with Top Predicted Colleges in JoSA

Line A represents the parallel combination.
Reason : At a given potential difference V,current in the combination A
Is more than in the combination B.

i.e., l_A > l_B
Since $R_{A} = \frac{V}{l_{A}}$ and $R_{B} = \frac{V}{l_{B}}$
⟹ R_A < R_B

Please subscribe our Youtube channel to unlock this solution.