Question

Two conducting wires x and y of same diamete but of different materials are

joined in series across a battery. If number density of electrons in x is twice that

in y, Find the ratio of drift velocity of electrons in the two metals.​

Answer 1

Explanation:

No. density of x =2y and no. density of y is y. According to question both wires have same diameter and joined in series. Therefore, both have same area, charge and current. Vdy\vdx = 2y\y Vdy\vdx =2:1