Answer:
A. simple to construct and easy to repair
Explanation:
A dynamic microphone works on the principle of electromagnetic principle. A diaphragm is attached to a coil of wire which helps in producing sound. Responding to the sound waves, the coil of the wire is vibrated by the diaphragm. A magnetic field is created by the magnet which is present inside the coil of wire. The electrical signal is generated in response to the motion of the coil. The speed of the motion produces the amount of the current.
Since the construction of a dynamic microphone is easier as compared to any other microphone, John is likely to opt to build one.
Answer:
Glue Language
Explanation:
I'm not 100% sure, but here is the definition.
Glue language- A programming language that can be used to provide interoperability between systems not originally intended to work together
OMR, OCR and MICR are all types of character and mark recognition devices. They are scanners <span>that are able to recognize special </span>characters and marks<span>.
</span>OMR stands for Optical Mark Recognition,which <span>senses the presence or absence of a mark.</span>
OCR stands for Optical Character recognition, which reads special preprinted characters by light source.<span>
MICR stands for Magnetic Ink Character Recognition, where </span><span>machine reads character made of ink containing magnetized particles.
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Answer:
The sonar operator looks at the display a forms an internal representation of the strength of the evidence that a submarine is present. If this exceeds an internal, subjective threshold,the sonar operator tells the captain that a submarine is present.
