The Motor Effect (AQA GCSE Physics): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What does electric current always create around conductors?
What does electric current always create around conductors?
Magnetic fields
What shape are the magnetic field lines around a straight current-carrying wire?
What shape are the magnetic field lines around a straight current-carrying wire?
Concentric circles
What happens to magnetic field lines as distance from the wire increases?
What happens to magnetic field lines as distance from the wire increases?
They get further apart
In the right-hand rule, which direction does your thumb point?
In the right-hand rule, which direction does your thumb point?
Conventional current direction
Which current direction should you use with the right-hand rule?
Which current direction should you use with the right-hand rule?
Conventional current
What happens to magnetic field strength if you double the current in a wire?
What happens to magnetic field strength if you double the current in a wire?
It doubles
What happens to field strength if you double your distance from a wire?
What happens to field strength if you double your distance from a wire?
It halves
What is a solenoid?
What is a solenoid?
A long coil of insulated wire
What is the magnetic field pattern of a solenoid similar to?
What is the magnetic field pattern of a solenoid similar to?
A bar magnet
Which method will NOT strengthen a solenoid's magnetic field?
Which method will NOT strengthen a solenoid's magnetic field?
Decreasing the current
Why is iron particularly effective in electromagnet cores?
Why is iron particularly effective in electromagnet cores?
Iron is easily magnetised