Ammeter is connected in the series while a volumeter is connected in parallel why
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Ammeter is always connected in series because it has low internal resistance. The current to be measured in the circuit should not be practically affected by the Ammeter, hence the need to have a low internal resistance. Voltmeter is always connected in parallel because it has high internal resistance.
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Ammeter:-
An ammeter is just a converted Galvanometer and measures the current flowing through the circuit by showing proportional deflection. An ammeter is formed by connecting a Galvanometer with a low resistance in parallel.
★ So the Ammeter is connected in series with the circuit elements and measures the current flow in a circuit.
Voltmeter:-
A Voltmeter is also a converted Galvanometer which measures the amount of Voltage (or) in other words the potential difference accross two points in a circuit. A voltmeter is formed by connecting a Galvanometer in series with a high resistance.
★ So the Voltmeter is attached in parallel in a circuit and measures the voltage in a circuit.