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Materials and Components - Engineering

Q1:

The colour code on a carbon resistor is green-blue-yellow. The tolerance is

A ± 5%

B ± 10%

C ± 20%

D ± 30%

ANS:C - ± 20%

The fourth band indicates Tolerance.

Brown +or- 1%,
Red +or- 2%,
Gold +or-5%,
Silver +or-10%,
No colour +or-20%,
Pink High stability.

So no color is given in this question. And the answer is 'C'.