Two resistance are measured in $Ohm$ and is given as

$R_1 = 3 \Omega \pm 1\%$  and  $R_2 = 6 \Omega \pm 2\%$ When they are connected  in parallel, the percentage error in equivalent resistance is.......... $\%$

  • A

    $3$

  • B

    $4.5$

  • C

    $0.67$

  • D

    $1.33$

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