How do we connect ammeter and voltmeter in an electric circuit? Draw a circuit diagram to justify your answer. What is likely to happen if the positions of these instruments are interchanged? Give reason
Answers
An ammeter is a low resistance device used to measure the strength of current in a circuit.
It is always connected in series With the circuit.
The voltmeter is a high resistance device used to measure voltage across two point and it is always connected in parallel with the the circuit.
If the positions of these two are interchanged, the ammeter will be destroyed by high amount of current given that it is of low resistance.
hope it helped you
Explanation:
A voltmeter has been defined as a device used for measuring the electrical potential difference between the two points in an electric circuit. An ammeter has been a measuring instrument which will be useful for measuring the electric current in a circuit. An ammeter will be always connected in series as it has a low resistance and the Voltmeter will be always connected in parallel because it will be having a high resistance. On interchanging their position, An ammeter is usually connected in parallel. Since it will be having a very low resistance, most of the current will be flowing through it and will be resulting in a short circuit and can also damage the circuit. Now, if the Voltmeter has been connected in series as it will be having a high resistance no current will flow through it, and the voltage indicated will be zero.