Question

What is the resistance of this $4$ strip resistor ?

Colour are in order- Yellow, violet, red, golden.

• A. $[4.7\pm 5\%]\text{k}\Omega$
• B. $[3.6\pm 5\%]\text{k}\Omega$
• C. $[4.7\pm 10\%]\text{k}\Omega$
• D. $[3.6\pm 10\%]\text{k}\Omega$

Answer 1

The correct option is A $[4.7\pm 5\%]\text{k}\Omega$


From above data, we get

First digit$=4$; Second digit$=7$; Multiplier$=100$

Tolerance $=\pm 5\%$

The resistance $R$ of given carbon resistor is given as

$R=47\times {10}^2\pm 5\%$

$\Rightarrow R=[4.7\pm 5\%]\text{k}\Omega$

Hence, option $\left(a\right)$ is correct.