Resistance and Power - Technical MCQs

Q1:

How is a 3.9 komega.gif resistor color-coded?

A red, white, red, gold

B red, green, orange, silver

C orange, white, red, gold

D orange, green, orange, silver

ANS:C - orange, white, red, gold

By rule of colour coding of resistor, 3 is orange, 9 is white And 2 is red so Calculate colour code 392 first two are as it is And last digit take power of 10.

i.e 10^2 = 100 then 39*100 = 3900 = 3.9k gold is tolerance 10.