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Karo-lina-s [1.5K]
3 years ago
12

Which of the following utilize electromagnetic induction to operate?   

Physics
1 answer:
11111nata11111 [884]3 years ago
7 0
The first two in a way use indiction.  A generator causes an induced voltage on the output terminals by rotating a coil in a magnetic field (Faraday's Law of magnetic induction).  A telephone microphone has a membrane that is excited (moved) by sound waves and on the back of this membrane is a magnet.  The magnet is placed inside the core of a coil of wire that has a voltage induced in it by the changing magnetic flux through the loop as it vibrates.
A turbine is moved by fluids or air, and while they can drive generators they themselves do not require induction to operate
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