Microphones (OCR GCSE Physics A (Gateway Science Suite)): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What do dynamic microphones convert sound waves into?
What do dynamic microphones convert sound waves into?
Electrical current
What is the relationship between the electrical current and the sound signal?
What is the relationship between the electrical current and the sound signal?
Proportional
Which component is positioned at the centre of a dynamic microphone?
Which component is positioned at the centre of a dynamic microphone?
Fixed magnet
What do sound waves create in a dynamic microphone?
What do sound waves create in a dynamic microphone?
Pressure variations
What do pressure variations cause in a dynamic microphone?
What do pressure variations cause in a dynamic microphone?
Coil to move back and forth
What does the coil move through in a dynamic microphone?
What does the coil move through in a dynamic microphone?
Magnetic field
What effect causes current to be induced in the coil?
What effect causes current to be induced in the coil?
Generator effect
How does the induced current relate to the sound wave?
How does the induced current relate to the sound wave?
It varies with the sound wave
Where is the induced current transmitted to?
Where is the induced current transmitted to?
Loudspeaker or recording device
What is the main function of a dynamic microphone?
What is the main function of a dynamic microphone?
Convert sound to electrical current