Question detail

A learner confuses potential difference, current and resistance. Which option best fixes the answer for Mains electricity?

Try the question, check the answer, then read the explanation to understand the curriculum point.

At a glance

MCQ

Type

practice

Style

Topic

Domestic uses and safety

Question

  1. A. State the exact relationship in the objective and apply it only to the stated situation.
  2. B. Replace the objective with a vague statement that electricity is useful.
  3. C. Describe a different Physics unit because it sounds more familiar.
  4. D. Leave out units, component names or circuit conditions from the answer.

Answer

The correct answer is: State the exact relationship in the objective and apply it only to the stated situation.

Explanation

State the exact relationship in the objective and apply it only to the stated situation. That keeps the answer focused on explain that the live wire carries the alternating potential difference from the supply.

Common mistake

Mains electricity common mistake 1

Giving a vague answer instead of directly addressing: Explain that the live wire carries the alternating potential difference from the supply..

Answer by clearly explaining how to explain that the live wire carries the alternating potential difference from the supply..

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