the horn of a motor car
an A.C. generator
a microphone
the telephone
radio waves
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Discussions (31)
The answer they are looking for is "a microphone," but the question is in error. A microphone does not actually convert sound energy into electric energy. A microphone merely produces an electric signal that matches the fluctuations in air pressure produced by sound waves.
Only a piezoelectric device can actually convert sound energy directly into electric energy.
Source(s):Microphone at http://en.wikipedia.org/wiki/Microphone
Piezoelectricity at http://en.wikipedia.org/wiki/Piezoelectr...
Microphones
Microphones are a type of transducer - a device which converts energy from one form to another. Microphones convert acoustical energy (sound waves) into electrical energy (the audio signal).
D coret ansa is microphone.
Read no one of the sub-heading "PARTS OF HEARING AIDS" in New school physics page 346
Note: electrical signal is the precursor of electrical energy.
if you look at the question before this one in 1984 which is question 42, you will see that my school made a mistake by interchanging option E in question 42 with 43. the answer is actually E which is loudspeaker. my school just made a mistake
THAT DOPE NURSE...
MARVELLOUS D.....
The answer they gave in the software version is just annoying, how can they say it is radio wave as if radio wave is a device
It's microphone, go and check in physics, am sad to see the answer as radio wave...... Thank you all.
Whereas a microphone converts the movements of its diaphram due to sound energy into electrical signals, loudspeakers convert electrical energy into motion of the diaphram and thus into sound energy.
A microphone is a type of transducer, which is a device that converts energy from one form into another. Specifically, it senses the vibrations in the air caused by sound waves and converts them into an electrical signal.
A microphone is a device that converts sound energy, such as sound waves created by voices or music, into electrical energy. This conversion is achieved through the use of various transducer elements within the microphone, such as diaphragms or piezoelectric materials. When sound waves hit the microphone's transducer, they cause it to vibrate or move, which in turn generates an electrical signal that represents the original sound. This electrical signal can then be amplified, processed, and transmitted for various applications, such as recording, broadcasting, or communication.
there is a typographical error in option E. it should be loudspeaker and not radio waves. please correct it.
