The quartz clock works under the principle of _______ *
OPTIONS
A.electochemical property
B.piezo-electric property
C.electrostatic property
D.resistive property
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Answers
Battery provides current to microchip circuit
Microchip circuit makes quartz crystal (precisely cut and shaped like a tuning fork) oscillate (vibrate) 32768 times per second.
Microchip circuit detects the crystal's oscillations and turns them into regular electric pulses, one per second.
Electric pulses drive miniature electric stepping motor. This converts electrical energy into mechanical power.
Electric stepping motor turns gears.
Gears sweep hands around the clockface to keep time.
In practice...
And this is what the inside of a quartz watch looks like in reality. Don't, under any circumstances, take yours apart if you ever want it to work again. You cannot see all these parts just by taking the back off a watch. The watch shown here came free with a packet of cornflakes (seriously!) and it was broken before I opened it up. But it was even more broken afterwards...
Answer:
Option B - Piezo-Electric Property
Explanation:
The ability to convert voltage to and from mechanical stress is called piezoelectricity. Quartz crystals maintain a precise frequency standard, which helps to regulate the movement of a watch or clock, thus making the timepieces very accurate.
A quartz clock is a clock that uses an electronic oscillator that is regulated by a quartz crystal to keep time. This crystal oscillator creates a signal with very precise frequency, so that quartz clocks are at least an order of magnitude more accurate than mechanical clocks.
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