A circular loop of radius $0.3\, cm$ lies parallel to a much bigger circular loop of radius $20 \,cm$. The centre of the small loop on the axis of the bigger loop. The distance between their centres is $15\, cm$. If a current of $20\, A$ flows through the smaller loop, then the flux linked with bigger loop is
A circular loop of radius $0.3\, cm$ lies parallel to a much bigger circular loop of radius $20 \,cm$. The centre of the small loop on the axis of the bigger loop. The distance between their centres is $15\, cm$. If a current of $20\, A$ flows through the smaller loop, then the flux linked with bigger loop is
- [AIIMS 2018]
- A
$9.1 \times 10^{-11} \;Wb$
- B
$6 \times 10^{-11}\; Wb$
- C
$3.3 \times 10^{-11}\; Wb$
- D
$6.6 \times 10^{-9} \;Wb$
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