ELECTROMAGNETISM

1 mark · Easy

State what happens to the direction of the magnetic field around a straight wire if the direction of the current is reversed.

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The direction of the magnetic field reverses.

Also accept: The field direction reverses.; It switches to the opposite direction.

Common mistakes: Saying the field disappears.

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Marking points

B1 · 1 mark · 1 mark for stating that the magnetic field reverses direction if the current is reversed.

Worked solution

The direction of the magnetic field reverses when the current is reversed.