Why ammeter connected surrounded by serires and voltmter conected surrounded by parrallel?
Answers: An ammeter measures current, the current has to flow through it. The voltmeter is measure voltage, no current has to stir through the voltmeter.
Volt meters measure "potential difference", or voltage "across" a device. Thus, the meter probes must connect to respectively end of (or contained by parallel with) the device being tested. This can with the sole purpose be accomplished next to a parallel connection.
Ammeters calculate electrical current flowing "through" a device. The only method to measure current through a device, is to break the circuit, insert the meter probes surrounded by "series" with the device self tested. Now, the current flowing through the meter is the same current flowing through the device or circuit human being tested.
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