Lets now analyse another learning outcome from subtopic 3.2 electromagnet :
Explain the factors that affect the magnitude of the force on a current-carrying condutor in a magnetic field..
This question can come out in paper 2.. basicallyt if u bring a wire which has current flows in it near to a permanent magnet, the wire will be pushed by a FORCE.
The factors that affect the strength of the force depends on:
1. strentgh of magnetic field
- stronger magnet produces stronger magnetic field,thus the force produced is greater
2. amount of current
- the bigger the current, the greater is the force
3. length of conductor(wire)
- the FORCE increases as the length increase
And again i remind u, this direction of force can be determined using FLEMING LEFT HAND RULE
Revise FLEMMING's LEFT HAND RULE.
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