The Motor Effect (OCR GCSE Physics A, Combined (Gateway Science Suite)): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What does a current in a wire produce?
What does a current in a wire produce?
A magnetic field
What rule determines the direction of the magnetic field around a current-carrying wire?
What rule determines the direction of the magnetic field around a current-carrying wire?
Right hand grip rule
What happens to the magnetic field strength when the current in a wire increases?
What happens to the magnetic field strength when the current in a wire increases?
It becomes stronger
What happens to the field strength as distance from the wire increases?
What happens to the field strength as distance from the wire increases?
It becomes weaker
What is the magnetic field shape of a solenoid similar to?
What is the magnetic field shape of a solenoid similar to?
A bar magnet
Why does a solenoid enhance the magnetic effect?
Why does a solenoid enhance the magnetic effect?
Field lines align to form one field
What effect does an iron core have on a solenoid?
What effect does an iron core have on a solenoid?
Increases its strength
Why does an iron core increase a solenoid's strength?
Why does an iron core increase a solenoid's strength?
Field lines pass through iron easier
How does increasing the number of coils affect a solenoid's magnetic field?
How does increasing the number of coils affect a solenoid's magnetic field?
Increases strength
Which affects the strength of a solenoid's magnetic field?
Which affects the strength of a solenoid's magnetic field?
Cross-sectional area
Which is NOT a factor affecting solenoid strength?
Which is NOT a factor affecting solenoid strength?
Wire thickness
Which factor does NOT affect a solenoid's magnetic field strength?
Which factor does NOT affect a solenoid's magnetic field strength?
Voltage of power supply