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]
- Draws also from lesson 𝐹 = 𝑙𝐼𝐵sin𝜃 which is the next lesson.
See MC 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)