Question

49. A solenoid coil with a resistance of 30 ohms and an inductance of 200 milli-henrys, is connected to a 230VAC, 50Hz supply. Determine the solenoid impedance. *

49. A solenoid coil with a resistance of 30 ohms and an inductance of 200 milli-henrys, is connected to a 230VAC, 50Hz supply. Determine the solenoid impedance.

Answer 1

69.59 ohms

Step-by-step explanation:

Given that

L=200\ mH

F=50\ hZ

R=30\ ohms

For inductance

`X_L=2* \pi* f * LX_L\\=2* \pi * 50* 200* 10^(-3)\\=62.8\ ohm`

`R=30\ ohmsImpedance\\Z=√(R^2+X_L^2)\\Z=√(30^2+62.8^2)\ ohms\\Z =69.59\ ohms`