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  • Two long parallel wires separated by 0.1m carry currents of 1A and 2A respectively in opposite directions. A third current carrying wire parallel to both of them is placed in the same plane such th

Two long parallel wires separated by 0.1m carry currents of 1A and 2A respectively in opposite directions. A third current carrying wire parallel to both of them is placed in the same plane such that it feels no net magnetic force. It is placed at a distance of 

Option: 1

0.5m from the first wire, towards the second wire.


Option: 2

0.2m from the first wire, towards the second wire.


Option: 3

0.1m from the first wire, away from the second wire.


Option: 4

0.1m from the first wire, away from the second wire.


Answers (1)

best_answer

Let the wire be at a distance x from the first wire.

Since, B_1=B_2 \text { or, } \frac{2 i_1}{x}=\frac{2 i_2}{(0.1+x)} \text { or, } x=0.1 \mathrm{~m}

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shivangi.bhatnagar

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