Magnetic fields (AQA A-Level Physics): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What shape does the magnetic field take around a long, straight current-carrying wire?
What shape does the magnetic field take around a long, straight current-carrying wire?
Concentric circles
What does magnetic flux density measure?
What does magnetic flux density measure?
Strength of a magnetic field
What is the unit of magnetic flux density?
What is the unit of magnetic flux density?
Tesla ()
One Tesla is defined as acting on of wire carrying at what angle to the field?
One Tesla is defined as acting on of wire carrying at what angle to the field?
Right angles
What force is exerted on a wire when current flows parallel to the magnetic field?
What force is exerted on a wire when current flows parallel to the magnetic field?
No force
When is the maximum force exerted on a current-carrying wire in a magnetic field?
When is the maximum force exerted on a current-carrying wire in a magnetic field?
When current is perpendicular to field
In the formula , what does represent?
In the formula , what does represent?
Length of wire in field ()
In Fleming's Left-Hand Rule, what does the thumb represent?
In Fleming's Left-Hand Rule, what does the thumb represent?
Direction of motion (force)
How does conventional current direction relate to electron flow?
How does conventional current direction relate to electron flow?
Opposite to electron flow
In which direction does the magnetic field flow around a bar magnet?
In which direction does the magnetic field flow around a bar magnet?
From North pole to South pole