Magnetic Fields in Wires & Solenoids (AQA GCSE Physics): Flashcards
📚Flashcards
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12 cards from this deck
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Practise the cards
12 cards from this deck
What does a current-carrying wire produce?
What does a current-carrying wire produce?
A 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 on field
Effect of greater distance from wire on field
Weaker field
Shape of solenoid's magnetic field
Shape of solenoid's magnetic field
Similar to a bar magnet
Why does a solenoid enhance magnetic effect?
Why does a solenoid enhance magnetic effect?
Coiling aligns fields into one strong field
What increases strength of a solenoid?
What increases strength of a solenoid?
Soft iron core in the center
Why does iron core increase solenoid strength?
Why does iron core increase solenoid strength?
Field lines pass through iron more easily than air
How does current affect solenoid strength?
How does current affect solenoid strength?
Larger current = stronger field
Does length affect solenoid strength?
Does length affect solenoid strength?
Yes, length is a factor
Does cross-sectional area affect solenoid?
Does cross-sectional area affect solenoid?
Yes, it affects strength
Two key factors for solenoid strength?
Two key factors for solenoid strength?
Number of turns and soft iron core