Induced Potential, Transformers & the National Grid (OCR GCSE Physics A (Gateway Science Suite)): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
ShowHide
Practise the questions
10 questions from this quiz
What is electromagnetic induction?
What is electromagnetic induction?
Inducing a PD by conductor moving in field
What is another name for electromagnetic induction?
What is another name for electromagnetic induction?
Generator effect
How does electromagnetic induction relate to the motor effect?
How does electromagnetic 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
What type of current is created when a magnet moves back and forth through a coil?
What type of current is created when a magnet moves back and forth through a coil?
Alternating current
What condition is needed for a current to be induced in a conductor?
What condition is needed for a current to be induced in a conductor?
Conductor must be part of complete circuit
What does the induced current's magnetic field do?
What does the induced current's magnetic field do?
Opposes the change that caused it
How can the direction of induced PD be reversed?
How can the direction of induced PD be reversed?
Change movement or field direction
How can induced PD be increased?
How can induced PD be increased?
Increase speed of relative motion
Which factors increase induced potential difference?
Which factors increase induced potential difference?
More coil turns & stronger magnetic field