OCR GCSE Gateway Science Suite - Physics A J249 · P4.2d
Electric motors
- Code
- P4.2d
- In
- P4.2 Uses of magnetism
- Topic
- P4 Magnetism and magnetic fields
- Course
- GCSE Gateway Science Suite - Physics A J249
- Board
- OCR
Grade boundaries·OCR command words
Codes and titles are read by a script from OCR's published specification and have not been checked by a person. What each point covers is in the specification itself: OCR’s specification.
Points in P4.2 Uses of magnetism
- PM4.2i Force on a conductor equation
- PM4.2ii Transformer equation
- P4.2a Force between a magnet and a current
- P4.2b Fleming's left-hand rule
- P4.2c Calculating force on a conductor
- P4.2d Electric motors
- P4.2e Electromagnetic induction
- P4.2f Alternators and dynamos
- P4.2g Transformers and alternating current
- P4.2h Transformer turns ratio
- P4.2i Transformer calculations
- P4.2j Microphones and loudspeakers