Electromagnetic (EM) Induction (AQA GCSE Physics): Quizzes
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Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What is electromagnetic induction?
What is electromagnetic induction?
Inducing potential difference by moving a conductor in a magnetic field
What is another name for electromagnetic induction?
What is another name for electromagnetic induction?
The generator effect
How does EM induction relate to the motor effect?
How does EM induction relate to the motor effect?
It is the opposite of the motor effect
What is required for electromagnetic induction to work?
What is required for electromagnetic induction to work?
Relative movement between conductor & field
Which method can induce a potential difference in a coil?
Which method can induce a potential difference in a coil?
Moving a bar magnet inside the coil
What type of current is created by moving a magnet back and forth through a coil?
What type of current is created by moving a magnet back and forth through a coil?
An alternating current
What is needed for an induced current to flow?
What is needed for an induced current to flow?
The conductor must be in a complete circuit
What does the induced current's magnetic field do?
What does the induced current's magnetic field do?
It opposes the change
How can you reverse the direction of induced potential difference?
How can you reverse the direction of induced potential difference?
Change movement of conductor relative to field
What else can reverse the direction of induced PD?
What else can reverse the direction of induced PD?
Changing the direction of the magnetic field
How can you increase the induced potential difference?
How can you increase the induced potential difference?
Increase the speed of relative motion
What are two ways to increase induced PD in a coil?
What are two ways to increase induced PD in a coil?
Add more turns & increase field strength