Question

Two wires of same metal have the same length but their cross sections are in the ratio
5:1. They are joined in series. The resistance of the thinner wire in 25 ohms .The total
resistance of the combination is​

Answer 1

Answer:

see the picture

Explanation:

Resistance is inversely proportional to area of cross section(given,same material,same length)

R¹ =25 ohm

R² =125 ohm

equivalent resistance (series) = (25+125)ohm = 150 ohm