Question

D Does the magnetic needle change
its position​

Answer 1

Answer: As the Earth's magnetic field changes, the magnetic North Pole moves. Over the last century, it has shifted more than 620 miles (1,000 kilometers) toward Siberia, according to scientists at Oregon State University. This difference between true north and the north heading on a compass is an angle called declination...

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Answer 2

Answer:

the compass needle moves towards the east 90 degrees from where it was and in the opposite direction to when the compass was on top of the wire so the magnetic field direction is different above and below the wire this happens because there is actually a magnetic field created which goes around the wire