Factors Affecting the FORCE

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.