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12 Magnetism and the motor effect

12 Magnetism and the motor effect

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Question 16

In a physics laboratory demonstration, a straight rigid wire of length 1.25 m is carrying a constant current. The wire is oriented at right angles to a uniform magnetic field.

  • The magnetic force experienced by the wire is 0.45 N.
  • The current passing through the wire is 0.60 A.

Calculate the magnetic flux density of the field.

Use the equation:

force=magnetic flux density×current×length \text{force} = \text{magnetic flux density} \times \text{current} \times \text{length} force=magnetic flux density×current×length
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12 Magnetism and the motor effect Questions

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