How would you find the direction of the electron flow in an armature located in a magnetic field?
- Flemings left hand rule.
- Flemings right hand rule.
- Maxwells corkscrew rule.
Explanation from PART66Online
An armature moving in a magnetic field has an EMF induced in it, which is generator action, so the generator rule applies. Fleming's right-hand rule is stated for conventional current; electrons drift the opposite way, so on an electron-flow convention the hands swap and the left hand gives the direction of the induced electron flow. The corkscrew rule only gives the field around a wire.
boholbo asked · 18 Jun 2025
The question asks 'Fleming's right hand rule', because the direction of the electron is it. If the question wants 'Fleming's left hand rule' as an answer, then not 'the direction of the electron flow', but 'the direction of the motion' is suitable.
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