The motor effect

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Question 12
Easy

A straight wire carrying a current is placed at right angles to a uniform magnetic field between two magnetic poles, as shown in the diagram.

A diagram showing a straight copper wire suspended horizontally between the North and South pole faces of a horseshoe magnet. The wire is part of a complete circuit connected to a variable low-voltage DC power supply and an ammeter.

  • current in the wire = 2.5 A
  • length of wire in the magnetic field = 0.055 m
  • magnitude of the force on the wire = 0.033 N

Calculate the magnetic flux density of the magnetic field.

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The motor effect Questions

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