Electromagnetic induction (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 condition is required for electromagnetic induction to occur in a conducting rod?
What condition is required for electromagnetic induction to occur in a conducting rod?
Rod moves relative to a magnetic field
What causes an induced emf in a rod moving through a magnetic field?
What causes an induced emf in a rod moving through a magnetic field?
Electrons experiencing force and charge accumulation
According to Faraday's Law, what determines the magnitude of the induced emf?
According to Faraday's Law, what determines the magnitude of the induced emf?
Rate of change of magnetic flux linkage
What principle does Lenz's Law reflect?
What principle does Lenz's Law reflect?
Conservation of energy
When a magnet falls through a coil, what happens compared to free fall?
When a magnet falls through a coil, what happens compared to free fall?
Magnet falls slower through the coil
In Faraday's Law equation , what does represent?
In Faraday's Law equation , what does represent?
Number of turns in the coil
For a straight conductor moving perpendicular to a magnetic field, which equation applies?
For a straight conductor moving perpendicular to a magnetic field, which equation applies?
In the equation , what does represent?
In the equation , what does represent?
Velocity perpendicular to magnetic field
For a rotating coil, what is the flux linkage given by?
For a rotating coil, what is the flux linkage given by?
How does induced emf vary in a coil rotating at constant angular speed in a magnetic field?
How does induced emf vary in a coil rotating at constant angular speed in a magnetic field?
Varies sinusoidally with time