Ammeter and voltmeter both devices are used in an electrical circuit to measure different aspects of electricity. Among them, ammeter gives you the measure of current while voltmeter helps in calculating the voltage or potential difference between two points in an electric circuit.
What is Ammeter and Voltmeter?
Ammeter – It is an instrument which is used to measure the current in an electrical circuit. It gets its name from Ampere which is the unit of electric current.
Voltmeter – This instrument measures the voltage between two points in an electrical circuit. It is present in both, digital and analogue form.
What is the Difference Between Ammeter and Voltmeter?
There are two ways to measure electricity
Ammeter and voltmeter are used to measure the flow of current and the measure of voltage, respectively. The significant difference between these two devices lie in its use. Further, look at the table below to understand the difference between an ammeter and a voltmeter.
Mentioned above are a few significant differences between Ammeter and Voltmeter. Both instruments are present in analogue and digital forms. Analogue metres have a pointer which depicts the measurement whereas digital devices display the value of current or voltage in the screen.
1. Current is Measured using _______ by Connecting it in _______ with the Electric Circuit.
2. Digital Meters are Preferred Over Analogue Meters.
3. An Ideal Voltmeter can be Considered as a _________ Circuit.
4. An Ideal Ammeter can be Treated as a __________ Circuit.
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1. How to Connect Ammeter and Voltmeter in a Circuit?
Ans. Ammeter is connected in series with the circuit element whereas voltmeter is connected in parallel with the electrical circuit element. Both are used as measuring instruments for electricity, and can help in various calculations by evaluating the value of current and voltage in a circuit.
2. Why is Ammeter Connected in Series?
Ans. Ammeter is connected in series to obtain maximum current flow in the electric circuit. This is possible because its internal resistance is very low. Hence, the flow of current in the circuit can be measured with accuracy.
3. Why is Voltmeter Connected in Parallel?
Ans. If the voltmeter is connected in series with the circuit element, then the potential difference between two points will be zero because they lie in the same line. Also, the high internal resistance of voltmeter is used for evaluating the potential difference between two points.