An a.c. source of 220 V (r.m.s.), 50 Hz is applied across a resistor of in series…
PHYSICS · Multi-part · A Level · Physics · Fields and their consequences · Fields and their consequences
Problem
An a.c. source of 220 V (r.m.s.), 50 Hz is applied across a resistor of 40Ω in series with an unknown pure inductor.
(a) Calculate the impedance of the circuit when the r.m.s. current is measured to be 2.0 A.
(b) Determine the inductive reactance present in the circuit.
(c) Find the value of the inductance L of the coil.
(d) Compute the r.m.s. voltage appearing across the inductor.