OCR GCSE Physics A · J249
Specification P4.1g · Paper 1 (Foundation), Paper 3 (Higher)
Revise: SolenoidsA solenoid goes further: it arranges one continuous insulated wire as many nearby turns wound in the same sense.
Loading…
Loading…
Loading…
GCSE Physics · key term
One complete loop of wire around a coil.
Used by OCR
Specification P4.1g · Paper 1 (Foundation), Paper 3 (Higher)
Revise: SolenoidsA solenoid goes further: it arranges one continuous insulated wire as many nearby turns wound in the same sense.
Explain the enhancement rather than merely stating it: the magnetic fields from the turns overlap and reinforce one another.
Use “number of turns”, not “number of coils”: a solenoid is one coil containing many turns of wire.
When comparing different solenoids, identify what must be controlled. For example, a test of turn number should keep the current, core material and wound length constant.
Create a free account to read GCSE Physics revision notes for your exam board and track your progress.