The Motor Effect (OCR GCSE Physics A (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 wire?
What rule determines the direction of the magnetic field around a wire?
Right hand grip rule
What can be used to show the magnetic field around a current-carrying wire?
What can be used to show the magnetic field around a current-carrying wire?
Plotting compasses
What happens to the magnetic field when the current in a wire increases?
What happens to the magnetic field when the current in a wire increases?
The field becomes stronger
What happens to the magnetic field as distance from the wire increases?
What happens to the magnetic field as distance from the wire increases?
The field becomes weaker
What shape does a solenoid's magnetic field resemble?
What shape does a solenoid's magnetic field resemble?
A bar magnet
Why does coiling a wire enhance the magnetic effect?
Why does coiling a wire enhance the magnetic effect?
Fields align to form a single field
What can be placed in a solenoid's centre to increase its strength?
What can be placed in a solenoid's centre to increase its strength?
An iron core
Why does an iron core increase a solenoid's strength?
Why does an iron core increase a solenoid's strength?
Field lines pass through easier than air
Which factor affects the strength of a solenoid?
Which factor affects the strength of a solenoid?
Size of current
How does increasing the number of turns affect a solenoid?
How does increasing the number of turns affect a solenoid?
Increases its strength
Which is NOT a factor affecting solenoid strength?
Which is NOT a factor affecting solenoid strength?
Wire colour