Electromagnetic?Acoustic Transducer?(EMAT) is a transducer?for non-contact sound generation and reception using electromagnetic mechanisms.
88) Which of these is an acoustic transducer?
Answer is:
microphone
Explanation:
Related Electronic Devices and Communication MCQ with Answers
Answer is:
a force transducer
Explanation:
a force transducer is used by digital weight balance
Answer is:
small values of the order of micro to milli volts varying with time
Explanation:
Signal in electronic communication refers to small values of the order of micro to milli-volts varying with time
Answer is:
Analog or digital electrical signal
Explanation:
Any physical quantity like temperature can be converted to Analog or digital electrical signal
Answer is:
the value of the signal varies continuously with time
Explanation:
in analog signal the value of the signal varies continuously with time