Question

The percentage resolution of a potentiometer having number of turns equal to 5000 will be

• A. 0.002%
• B. 0.02%
• C. 0.0002%
• D. 0.2%

Answer 1

The correct option is B 0.02%

Resolution of potentiometer

$=\frac{1}{Numberofturnsrequired}$

$=\frac{1}{5000}=0.2\times {10}^{-3}$

The percentage resolution

$=0.2\times {10}^{-3}\times 100$

$=0.02\%$