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Consider the figure, cross-sectional are...

Consider the figure, cross-sectional area of consider at A and B is 2a and a respectively. Current density at A and B are given by `J_(A)` and `J_(B)` then `J_(A)//J_(B)` is

A

`(1)/(2)`

B

2

C

1

D

4

Text Solution

Verified by Experts

The correct Answer is:
A
Current flowing through the resistor will be same throughout & `J prop (I)/(A)`
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