Saved Bookmarks
| 1. |
A coil has a resistance of 4 ohms and an inductance of 2H. It is connected to a 20V dc supply. Calculate the initial value of the voltage across the inductor.(a) 5V(b) 10V(c) 0 V(d) 20V |
|
Answer» The correct option is (d) 20V Easy explanation: Initially, inductor behave as open circuit for dc current so, V = V0 = 20V i.e. same as voltage source. |
|