Question

There are three red colored bands on a carbon resistor. What is its resistance ?

• A. $2.2$
• B. $2200$
• C. $(2200\pm 20\%)$
• D. $1.76$ to $2.64$

Answer 1

The correct option is C $(2200\pm 20\%)$

According to the color code of resistance,

code of red $=2$

code of red $=2$

code of red $=2$

The resistance of carbon resistor, $22\times {10}^2\pm 20$%

$2200\pm 20$%

The correct option is C.