The resistance of a given carbon resistor is \( 3.6\times10^{6}\,\Omega \pm 5\% \). What are the sequence of colour strips on the resistor?
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → Orange, Blue, Green, Gold
In the colour code of a carbon resistor the first two bands give the first two significant figures, the third band gives the power of ten (multiplier), and the fourth band gives the tolerance. The digits are black 0, brown 1, red 2, orange 3, yellow 4, green 5, blue 6, violet 7, grey 8, white 9; gold means ±5%.
\( 3.6\times10^{6}\,\Omega = 36\times10^{5}\,\Omega \)
First digit 3 = orange; second digit 6 = blue; multiplier \( 10^{5} \) = green; tolerance ±5% = gold.
Note: This question is from the pre-rationalised NCERT book (2022-23). The topic was removed from the latest NCERT book (2026-27), and it also appears to be out of the CUET 2026 syllabus.
NCERT (Pre-rationalised edition, 2022-23):
Resistivity of Various Materials – …
