The motor effect

The motor effect is when a current carrying conductor creates a magnetic field. This magnetic field is circular and will interact with other magnetic fields. As a result, the wire experiences a force.

The motor effect is the reason a motor works, the interaction of a wire coil with a magnetic field results in rotational energy. Therefore, converting electrical potential energy into mechanical energy.


Question 1. [Not an exam style question]

Design an experiment which could be used to measure

Question 2. [1 mark from 2017 HSC Q19 Multiple Choice]


Question 1.

See MC question 2

Question 2.

B, The wire will cause a downward force for the magnet, adding to its mass. Dividing by 9.8 to conver the force (F = BIL) into mass (m = F/g)

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