Question

Colour code of a carbon resistor is given as below.



The value of resistance and tolerance respectively, are

• A. $62\times {10}^5\Omega ,10\%$
• B. $63\times {10}^5\Omega ,5\%$
• C. $62\times {10}^5\Omega ,20\%$
• D. $12\times {10}^5\Omega ,10\%$

Answer 1

The correct option is A $62\times {10}^5\Omega ,10\%$

Colour coding for carbon resistors is given as

B	B	Red	O	Y	Green	Blue	V	G	W
0	1	2	3	4	5	6	7	8	9

$1^{\text{st}}$ band $\to$ First digit
$2^{\text{nd}}$ band $\to$ Second digit
$3^{\text{rd}}$ band $\to$ Number of zeros after second digit
$4^{\text{th}}$ band $\to$ Tolerance
$\therefore R=62\times {10}^5\Omega \pm 10\%$