The mutual induction between the two coils depends upon:
Correct answer: D. All of the above
- A. Area of the coil
- B. Number of turns
- C. Distance between the coil
- D. All of the above
Explanation
The mutual induction between two coils depends upon all of the above factors:Area of coil: The mutual induction is influenced by the area of the coils. Larger coil areas typically result in stronger mutual induction, as there is more opportunity for magnetic flux to link the coils.Distance between the coils: The mutual induction decreases as the distance between the coils increases. Closer proximity allows for more efficient coupling of magnetic flux between the coils, resulting in stronger mutual induction.Number of turns: The mutual induction is directly proportional to the number of turns in the coils. More turns result in a stronger magnetic field and greater coupling of flux between the coils, leading to increased mutual induction.
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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.
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288 free Electromagnetic Induction MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
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