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 ........ .
  • A$2$
  • B$1$
  • C$3$
  • D$5$
JEE MAIN 2021, Diffcult
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