List of practice Questions

Find the effective impedance in the circuit if the source is: a) DC source and b) High frequency AC source
effective impedance in the circuit if the source
In AC circuits, the relation that holds is \( Z = \frac{E_U}{I_U} \), where:
When 100 V dc is applied across a solenoid, a current of 1 A flows in it. When 100 V ac is applied across the same solenoid the current drops to 0.5 A. If the frequency of the ac source is 50 Hz, the impedance and inductance of the solenoid are: