Two metallic conductors P and Q are tested under identical conditions
PHYSICS · Multi-part · CBSE · Physics · Current Electricity · Current Electricity
Problem
Two metallic conductors P and Q are tested under identical conditions. Their experimental plots of current versus potential difference are straight lines passing through the origin. The slopes of the lines are 0.40 A V−1 for conductor P and 0.25 A V−1 for conductor Q.
Answer the following:
(i) Calculate the resistance of each conductor.
(ii) Which conductor offers greater opposition to the flow of current? Justify your answer numerically.
(iii) If a potential difference of 6 V is applied across each conductor, compute the power dissipated in each case.