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A horizontal wire carries 200amp current...

A horizontal wire carries `200amp` current below which another wire of linear density `20xx10^(-5)kgm^(-1)` carrying a current is kept at `2 cm` distance. If the wire kept below hangs in air. The current in this wire is

A

100A

B

9.8 A

C

98A

D

48A

Text Solution

Verified by Experts

The correct Answer is:
C
`(mu_0 i_1i_2)/(2pi r) = (mg)/(l)`
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