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Current balance / force acting on a current-carrying conductor with an amperemeter

Current balance / force acting on a current-carrying conductor with an amperemeter

Item no.: P2410601

Experiment Type: Teacher Experiment, Laboratory Experiment

Difficulty Expenditure of Time print
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Principle

The force acting on a current-carrying conductor loop in a uniform magnetic field (Lorentz force) is measured with a balance. Conductor loops of various sizes are suspended in turn from the balance, and the Lorentz force is determined as a function of the current and magnetic induction. The uniform magnetic field is generated by an electromagnet. The magnetic induction can be varied with the coil current.

Benefits

  • The use of a mechanic balance is especially suitable for a vivid demonstration of the Lorentz force
  • Four different wire loops included: Clearer and deeper understanding of all correlations leads to an enhanced learning success

Tasks

  1. The direction of the force is to be determined as a function of the current and the direction of the magnetic field.
  2. The force F is to be measured, as a function of the current IL in the conductor loop, with a constant magnetic induction B and for conductor loops of various sizes. The magnetic induction is to be calculated.
  3. The force F is to be measured, as a function of the coil current IM, for a conductor loop. In the range being considered, the magnetic induction B is, with sufficient accuray, proportional to the coil current IM.

What you can learn about

  • Uniform magnetic field
  • Magnetic induction (formerly magnetic-flux densitiy)
  • Lorentz force
  • Moving charges
  • Current
Document     Filesize
p2410601e.pdf Experiment guide, English 291.37 KB

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