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Two wires each of radius of cross sectio...

Two wires each of radius of cross section `r` but of different materials are connected together end to end (in series). If the densities of charge carries in the two wires are in the ratio `1:4`, the drift velocity of electrons in the two wires will be in the ratio:

A

(a)`1:2`

B

(b)`2:1`

C

(c)`4:1`

D

(d)`1:4`

Text Solution

AI Generated Solution

To solve the problem of finding the ratio of the drift velocities of electrons in two wires made of different materials but having the same radius, we can follow these steps: ### Step 1: Understand the Current Formula The current \( I \) flowing through a wire can be expressed using the formula: \[ I = n \cdot e \cdot A \cdot v_d \] where: ...
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