COMPUTER HARDWARE
INPUT DEVICES
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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This device has a magnetic coil that vibrates when it is hit by sound waves.
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Keyboard
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Trackerball
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Capacitive Touch Screen
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Microphone
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Explanation:
Detailed explanation-1: -The microphone capsule contains a small diaphragm connected to a moving coil. When sound waves hit the diaphragm, it vibrates.
Detailed explanation-2: -The most common are the dynamic microphone, which uses a coil of wire suspended in a magnetic field; the condenser microphone, which uses the vibrating diaphragm as a capacitor plate; and the contact microphone, which uses a crystal of piezoelectric material.
Detailed explanation-3: -A microphone is a form of transducer. That means it converts a sound wave into an electronic signal carried by wire. Generally, when that electric signal is sent through an amplified speaker, it is then converted back into a sound wave.
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