Old City & Guilds Current Limitation Question

[Abbsdad]

Hi, I have the following question from an old City & Guilds paper:
A resistive load rated at 65 W, 110 V is to be used on a 230 V, 50 Hz supply.
Calculate
(a) current in the load
(b) voltage drop needed across a pure inductor connected in series with the load
(c) inductance of this inductor
(d) phase angle of the circuit
(e) explain the advantage of this type of current limitation and give one practical example.
Could someone point me to any reading material on this please as I can only find items relating to MCBs and fuses.
Many thanks.

 

[berkeman]

What's an "old City & Guilds paper"? Is this question for schoolwork?

 

[DaveE]

https://en.wikipedia.org/wiki/Electrical_impedance

https://www.khanacademy.org/science...-topic/ee-ac-analysis/v/ee-ac-analysis-intro1