# Old City & Guilds Current Limitation Question

In summary, the conversation is about calculating the current, voltage drop, inductance, and phase angle of a circuit using a resistive load and a pure inductor. The person is also looking for reading material on this topic, specifically related to MCBs and fuses. The discussion also mentions the potential advantage of using this type of current limitation, with a practical example. The City & Guilds paper is likely a test or exam for a course or certification.
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
(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.

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

jim mcnamara

## 1. What is the Old City & Guilds Current Limitation Question?

The Old City & Guilds Current Limitation Question is a problem-solving question that is commonly found in City & Guilds exams for various industries. It requires the candidate to use their knowledge of electrical principles and calculations to determine the maximum current that can be safely carried by a particular circuit or piece of equipment.

## 2. Why is the Old City & Guilds Current Limitation Question important?

This question is important because it tests the candidate's understanding of electrical safety and their ability to apply it in practical scenarios. It also ensures that individuals working in industries where electrical knowledge is crucial have the necessary skills to carry out their job safely and effectively.

## 3. What types of calculations are involved in the Old City & Guilds Current Limitation Question?

The calculations involved in this question typically include Ohm's Law, power calculations, and voltage drop calculations. These are used to determine the current-carrying capacity of a circuit or equipment, taking into account factors such as resistance, voltage, and power ratings.

## 4. How can I prepare for the Old City & Guilds Current Limitation Question?

To prepare for this question, it is important to have a strong understanding of basic electrical principles and calculations. Practice questions and mock exams can also help to familiarize yourself with the format and types of questions that may be asked.

## 5. Are there any resources available to help with the Old City & Guilds Current Limitation Question?

Yes, there are various resources available such as study guides, online tutorials, and practice exams that can help you prepare for this question. It is also recommended to attend training courses or workshops to further enhance your knowledge and skills in this area.

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