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13 April, 22:04

Why do the compass needles change direction when the electric current is flowing? A. The electricity is flowing through the compass needles, causing them to turn toward the wire. B. The Earth's magnetic field changes direction while the electricity is connected. C. The compasses create their own electric field, which forces their needles to rotate. D. The current creates a magnetic field that exerts a force on the compass needles.

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  1. 14 April, 01:49
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    the current creates a magnetic field that exerts a force on the compass needles.

    Explanation:

    Compass needles are affected by a magnetic field. This means that when the electric current is running through the wire, a magnetic field is created. This magnetic field affects the direction of the compass needles and causes them to move. So, the compass needles change direction because the current creates a magnetic field that exerts a force on the compass needles.
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