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dry cell-is a sealed container with moist chemeals inside which do not spill when carride
-it is easy to get and aconinient to use
-produce direct current (d.c
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Q: Transformer used in digital alarm clock?
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What difference's between potential transformer and voltage transformer?

Both are same. This is an instrument transformer used for metering & protections.


Why was the First Digital Clock Made?

The "Pulsar" digital electronic watch was the first watch of its kind, and it was developed in the early 1970s. It could only light up when the user touched a button, primarily because it used so much energy to operate. Interestingly the watch was inspired by the futuristic movie, "2001: A Space Odyssey", in which a prototype for a digital electronic watch appeared.


What is the name of the transformer that reduces the voltage?

a step down transformer is used to lower the voltage from the powerlines into your home. a common slang term for this type of transformer is a pole pig.


What does a digital clock crystal do?

An alarm clock works by specifying a specific time for an alarm to sound, at which time it is electrically or electronically activated. It is crucial that the clock is set to the correct time.


A transformer is a device used to increase or decrease dc voltage?

The answer below this is not correct, a transformer can only be used on AC not DC. So the statement, "A transformer is a device used to increase or decrease DC voltage" is false The above comment relates to an entry which was obviously deleted. However, the above comment is also false. The ignition coil in of a petrol engine is a transformer, a pulse transformer. It's d.c. which passes through the primary, not a.c. <<>> A: this is a passive component as opposed to a device that is active answer is yes it does that but more importantly it isolates and match in/out impedance's

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