Question

The colour code of a resisitance is given below. The values of resistance and tolerence, respectively, are

• A. $4.7\text{k}\Omega ,5$%
• B. $470\Omega ,5$%
• C. $470\text{k}\Omega ,5$%
• D. $47\text{k}\Omega ,10$%

Answer 1

The correct option is B $470\Omega ,5$%

For the given colour code, resistance is given as, $AB\times {10}^C\pm \text{tolerence}$

From the colour code of resistance, $\text{Yellow}\left(A\right)=4$, $\text{Violet}\left(B\right)=7$, $\text{Brown}\left(C\right)=1$ and $\text{Gold}\left(\text{tolerence}\right)=5$
$\therefore \text{resistance}=47\times {10}^1\pm 5$%