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12 Magnetism and the motor effect

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Question 2

A laboratory technician calibrates a force-balance apparatus using a straight conductor placed in the gap of an electromagnet. The conductor segment in the field is at right angles to the magnetic field.

QuantityValue
Magnetic flux density, BBB0.42 T0.42\ \text{T}0.42 T
Current, III2.0 A
Length of conductor in the field, lll3.5 cm

For a conductor at right angles to a magnetic field, F=B×I×lF = B \times I \times lF=B×I×l.

Calculate the force on the conductor segment.

Give your answer in standard form.

[3]
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12 Magnetism and the motor effect Questions

  1. GCSE
  2. /Physics
  3. /12 Magnetism and the motor effect

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