question_answer

A resistor of 6 \[k\Omega \] with tolerance 10% and another resistance of 4 \[k\Omega \] with tolerance 10% are connected in series. The tolerance of the combination is about

A) 5%                                         

B) 10%

C) 12%                                       

D) 15% In series combination,                         \[=5000kW\]                          \[=\frac{mgh}{t}\] Error in combination               \[=7.5\times 9.8\times 4.7\]                \[=3454.5kW\]                \[\text{=}\frac{\text{Power used}}{\text{Power consumed}}\text{ }\!\!\times\!\!\text{ 100}\]               \[=\frac{3454.5}{5000}\times 100=69%\]                    = 10