Q. A color coded carbon resistor has the colors orange, blue, green and silver. Its resistance value and tolerance percentage respectively are
AMUAMU 2010Current Electricity
Solution:
Number
Multiple
Tolerance $\%$
Black $0$
$10^{0}$
Brown $1$
$10^{1}$
Red $2$
$10^{2}$
Orange $3$
$10^{3}$
Yellow $4$
$10^{4}$
Green $5$
$10^{5}$
Blue $6$
$10^{6}$
Violet $7$
$10^{7}$
Grey $8$
$10^{8}$
White $9$
$10^{9}$
Gold
$10^{-1}$
$5$
Silver
$10^{-2}$
$10$
No colour
$20$
First colour gives first digit, second colour gives second digit and third digit gives the multiplier and fourth colour gives the tolerance. Resistance of the given resistor
$= 36 \times 10^{5} \Omega \pm 10\%$
| Number | Multiple | Tolerance $\%$ |
|---|---|---|
| Black $0$ | $10^{0}$ | |
| Brown $1$ | $10^{1}$ | |
| Red $2$ | $10^{2}$ | |
| Orange $3$ | $10^{3}$ | |
| Yellow $4$ | $10^{4}$ | |
| Green $5$ | $10^{5}$ | |
| Blue $6$ | $10^{6}$ | |
| Violet $7$ | $10^{7}$ | |
| Grey $8$ | $10^{8}$ | |
| White $9$ | $10^{9}$ | |
| Gold | $10^{-1}$ | $5$ |
| Silver | $10^{-2}$ | $10$ |
| No colour | $20$ |