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Questions and Answers
What is the relationship between electricity and magnetism utilized in audio-video recording technology?
What is the relationship between electricity and magnetism utilized in audio-video recording technology?
- Electromagnetic conduction
- Electromagnetic radiation
- Electrostatic attraction
- Electromagnetic induction (correct)
What are devices that detect and convert audio inputs to electric outputs or vice versa called?
What are devices that detect and convert audio inputs to electric outputs or vice versa called?
- Transducers (correct)
- Amplifiers
- Modulators
- Converters
What is the characteristic of the 'generator effect' used by most transducers like microphones and speakers?
What is the characteristic of the 'generator effect' used by most transducers like microphones and speakers?
- Production of static electric charges within a magnetic field
- Production of electromotive forces due to a changing electric signal within a magnetic field (correct)
- Creation of electric resistance within a magnetic field
- Generation of magnetic fields due to a changing electric signal
What is the common attribution of magnetism depending on the material and moving charges?
What is the common attribution of magnetism depending on the material and moving charges?
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What happens to the polarity of an object when magnetism is induced by stroking it with a permanent magnet?
What happens to the polarity of an object when magnetism is induced by stroking it with a permanent magnet?
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