Saved Bookmarks
| 1. |
In the circuit shown in figure power factor of box is `0.5` and power factor of circuit is `sqrt3/2` .Current leading the voltage. Find the effective resistance of the box. A. `5Omega`B. `10Omega`C. `15Omega`D. `20Omega` |
|
Answer» Correct Answer - A `(1)/(2)=(R )/(sqrt(R^(2)+X_(c).^(2)))` `sqrt(3)/(2)=(R+10)/(sqrt((R+10)^(2)+X_(C)^(2)))` Solving these two equation `R=5Omega` |
|