Magnetic Fields in Wires & Solenoids (OCR GCSE Physics A, Combined (Gateway Science Suite)): Flashcards
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11 cards from this deck
What does current produce around a wire?
What does current produce around a wire?
Magnetic field
Rule for magnetic field direction around wire
Rule for magnetic field direction around wire
Right hand grip rule
Effect of greater current on magnetic field
Effect of greater current on magnetic field
Stronger magnetic field
Effect of greater distance from wire
Effect of greater distance from wire
Weaker magnetic field
Solenoid field shape resembles
Solenoid field shape resembles
Bar magnet
Why solenoid enhances magnetic effect
Why solenoid enhances magnetic effect
Coiling aligns fields into single field
What in solenoid centre increases its strength?
What in solenoid centre increases its strength?
Iron core
Why does iron core increase solenoid strength?
Why does iron core increase solenoid strength?
Field lines pass through it easier than air
5 factors affecting solenoid strength
5 factors affecting solenoid strength
Current, length, area, turns, iron core
Solenoid factor: what type of core?
Solenoid factor: what type of core?
Soft iron core
Solenoid factor: number of what?
Solenoid factor: number of what?
Number of turns (coils)