Question

How do you verify that resistance of a conductor is inversely proportional to the cross sectional
area of the conductor at constant temperature and length of the conductor ?​

Answer 1

Answer:

7 cm

Explanation:

please mark it brainliesst

Answer 2

Answer:

Measure the value of current using ammeter and note the value. Repeat this for other lengths of the iron spokes and note the corresponding values of currents. ... From this, we conclude that the resistance of a conductor is directly proportional to its length (l) for constant cross-sectional area. Therefore, R∝L.