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Questions  >>  CBSE XII  >>  Physics  >>  Current Electricity
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Q)

The colour coded resistor is as shown in the figure . Compute in mega ohm

$\begin{array}{1 1} 2.0 \times 10^{-7}\;\Omega \;m \\7.0 \times 10^{-7}\;\Omega \;m \\ 0.17\;megaohm\;\pm 5 \% \\ 1.17\;megaohm\;\pm 6 \%\;m\end{array} $

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A)
Solution :
We know that the number for brown colour it i s 1, for violet it is 7, and yellow it is 4 and for gold accuracy is $5 \%$
Resistance of the resistor $= 17 \times 10^4 \Omega \pm 5 \%$
$\qquad= 0.17\;megaohm\;\pm 5 \% $
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