A resistance is shown in the figure. Its value and tolerance are given respectively by:

Question:

A resistance is shown in the figure. Its value and tolerance are given respectively by:

  1. (1) $270 \Omega, 10 \%$

  2. (2) $27 \mathrm{k} \Omega, 10 \%$

  3. (3) $27 \mathrm{k} \Omega, 20 \%$

  4. (4) $270 \Omega, 5 \%$


Correct Option: , 2

Solution:

(2) Color code: BI, Br, R, O, Y, G, B, V, Gr, W

$0,1,2,3,4,5,6,7,89$

$\mathrm{R}=\mathrm{AB} \times \mathrm{C} \pm \mathrm{D} \%$ where $\mathrm{D}=$ tolerance

$\mathrm{D}_{\text {gold }}=\pm 5 \%, \mathrm{D}_{\text {silver }}=\pm 10 \% ; \mathrm{D}_{\text {no colour }}=\pm 20 \%$

Red voilet orange silver

$\mathrm{R}=27 \times 10^{3} \Omega \pm 10 \%$

$\mathrm{i}=27 \mathrm{k} \Omega \pm 10 \%$

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