Why does one end of a solenoid behave as a north pole and the other as a south pole?

Question

Why does one end of a solenoid behave as a north pole and the other as a south pole? — Exam MCQ

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A. The current creates a similar magnetic effect to a bar magnet — The correct choice is The current creates a similar magnetic effect to a bar magnet. The result follows from the relevant magnetic-field, electromagnetic-induction or Fleming/right-hand-rule principle.

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B. There is no current in the solenoid

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C. The solenoid is naturally magnetic

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D. The insulation creates the poles

Why does one end of a solenoid behave as a north pole and the other as a south pole?

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