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Materials and Components

Q1:

The colour code on a carbon resistor is red-red-black-silver. The value of resistor is

A 22000 Ω

B 2200 Ω

C 22 ± 5% Ω

D 22 ± 10% Ω

ANS:D - 22 ± 10% Ω

Black, brown, red, yellow, green, blue, voilet, gray, white and tolerance gold silver no colour are respectively 5, 10, 20 %.



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