An ammeter measures the electric current in a circuit. In order for an ammeter to measure a devices current, it must be connected in series to that device. This is necessary because objects in series experience the same current.
Why ammeter is connected in series and not in parallel?
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.
What will happen when an ammeter connected in parallel?
Ammeter aims at measuring the current flowing through the circuit and hence, it is connected in series. When ammeter is connected in parallel to the circuit, net resistance of the circuit decreases. Hence more current is drawn from the battery, which damages the ammeter.
How should ammeter be connected in a circuit?
In order to measure the current an ammeter should always be connected in series. Voltmeter is a device used to measure the voltage and voltmeter is always connected in parallel.
Why a voltmeter is connected in parallel?
In order for a voltmeter to measure a devices voltage, it must be connected in parallel to that device. This is necessary because objects in parallel experience the same potential difference. The potential differentiation of the circuit is measured by a voltmeter and it has high internal resistance.
Does an ammeter have high resistance?
1 ) Resistance of an ammeter is low. As ammeter is connected in series in the circuit, effective resistance is the sum of resistance of the circuit
What if voltmeter is connected in series?
The voltmeter has a high resistance. When a high resistance voltmeter is connected in series it will not have any current to flow through the circuit. Therefore, a voltmeter connected in series acts more like a resistor and not as a voltmeter.
Why voltmeter is connected in parallel and it has high resistance?
A voltmeter measures the potential difference of the circuit and it has high internal resistance. When the voltmeter is connected in parallel with a circuit component, the amount of current passing through the voltmeter is very less. Therefore, the current through the circuit is unaltered.
How is an ammeter used in a parallel circuit?
2:215:15Using an Ammeter with a Parallel Circuit - YouTubeYouTube