Choose the correct one.
Correct answer: A. I don't know anything about the speaker; I have just learnt that a Mr. Bill is coming to present a paper.
- A. I don't know anything about the speaker; I have just learnt that a Mr. Bill is coming to present a paper.
- B. I don't know anything about the speaker; I have just learnt that the Mr. Bill is coming to present his paper.
- C. I don't know anything about the speaker; I have just learnt that a Mr. Bill is coming to present paper.
- D. I don't know anything about speaker; I have just learnt that Mr. Bill is coming to present his Paper.
Explanation
The sentence is structured correctly, using the phrases "a Mr. Bill" and "a paper" to convey the unknown identity of the speaker and the specific paper being presented.
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About Electromagnetic Induction
Changing magnetic flux induces an emf according to Faraday's law, while Lenz's law gives the direction that opposes the change producing it. Transformers apply induction between coils to step alternating voltage up or down, with turns ratio, current transformation and energy losses determining practical operation.
Practise Electromagnetic Induction
288 free Electromagnetic Induction MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
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