OCR GCSE Twenty First Century Science Suite - Physics B J259 · P3.5.9
Solenoids in loudspeakers and headphones
- Code
- P3.5.9
- In
- P3.5 What are magnetic fields?
- Topic
- P3 Electric circuits
- Course
- GCSE Twenty First Century Science Suite - Physics B J259
- 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 P3.5 What are magnetic fields?
- P3.5.1 Magnetic poles
- P3.5.2 Magnetic field of a magnet
- P3.5.3 Compasses and Earth's magnetic core
- P3.5.4 Permanent and induced magnets
- P3.5.5 Showing the magnetic effect of a current
- P3.5.6 Magnetic field around a wire
- P3.5.7 Field strength, current and distance
- P3.5.8 Strengthening a solenoid
- P3.5.9 Solenoids in loudspeakers and headphones