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  4. A current of 6 A enters one corner P of an equilateral triangle PQR having 3 wires of resistance 2 Ω each and leaves by the corner R The currents i1 in ampere is <img class=img-fluid question-image alt=image src=https://cdn.tardigrade.in/img/question/physics/a517af721b44c3e8cb362407b17566e6-.png />

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Q. A current of 6 A enters one corner $P$ of an equilateral triangle PQR having 3 wires of resistance $2 \Omega$ each and leaves by the corner $R$ The currents $i_{1}$ in ampere is ______

image

JEE MainJEE Main 2021Current Electricity

Solution:

For parallel combination current devides in the inverse ratio of resistance.
$i _{ PQ }=\frac{2}{6} \times 6 A$