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Question: Answered & Verified by Expert
A resistor has bands with colours orange, green, silver and gold. Then, the resistance of the resistor is
PhysicsCurrent ElectricityAP EAMCETAP EAMCET 2018 (22 Apr Shift 2)
Options:
  • A $(350 \pm 5) \mathrm{m} \Omega$
  • B $(350 \pm 17.5) \mathrm{m} \Omega$
  • C $(35 \pm 5 \%) \mathrm{m} \Omega$
  • D $(250 \pm 5 \%) \mathrm{m} \Omega$
Solution:
2249 Upvotes Verified Answer
The correct answer is: $(350 \pm 17.5) \mathrm{m} \Omega$


Given, orange $=3$,
Green $=5$
Silver $=10^{-2}$
Gold (tolerance) $= \pm 5 \%$
From colour code, resistance value is
$$
\left[35 \times 10^{-2} \pm 5 \%\right. \text { ] }
$$
$$
\begin{aligned}
& =350 \times 10^{-3} \pm 5 \% \mathrm{ohms} \\
& =350 \mathrm{~m}-\Omega \pm 17.5 \mathrm{~m}-\Omega
\end{aligned}
$$

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