Hello there,
<span>It is a soft metal core made into a magnet by the passage of electric current through a coil surrounding it.
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Answer: A. Resistance is directly related to length.
Explanation: Resistance is directly proportional to wire length. The longer the wire the greater resistance since there is more space for particles to collide. While resistance is inversely proportional with the cross- sectional area of a wire. The bigger the wire lower resistance.
Density is the mass divided by the volume
Explanation:
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