Hello, friends, I hope you all are doing great. In today’s tutorial, we will discuss the Difference Between Ammeter & Voltmeter. The basic difference between an ammeter and a voltmeter is that ammeter is used to find the value of current flowing in the circuitry and a voltmeter is used to measure the value of the voltage at 2 terminals of circuitry. There are 2 steps to find the value of electricity first through current and second one through voltage. The current is calculated with the ammeter and the voltage is measured with the voltmeter.
The working operation of both the ammeter and voltmeter is similar to the operation of a galvanometer. In the galvanometer there is the coil is placed between a permanent magnet. After the flow of current in the coil gets deflected. The coil deflection depends on the current flowing through the coil. The deflection of the coil helps to find the value of current and voltage. If resistance is connected in series combination with the galvanometer it operates as an ammeter. In today’s post, we will have a detailed look at both ammeter and voltmeter and compare them to find their differences. So let’s get started with the Difference Between Ammeter & Voltmeter.
Difference Between Ammeter & Voltmeter
Ammeter
- The device that measures the current passing in the circuitry is called an ammeter.
- The resistance offered by the ammeter is less than the voltmeter.
- It should link to supply since it has less value of resistance and can be damaged due to large current flow.
- Some meter has a range of a few mA of currents.
- To increase, the measuring range of the meter there should be resistance called shunt show connected to the ammeter in parallel combination.
- It normally has a feature to operate for less voltage range normally single volts or less
- The circuit for which the current is measured ammeter is attached in a series combination.
- Its accuracy is larger than the voltmeter.
- Its range can not be varied.
Voltmeter
- The instrument used to find the value of voltage about two terminals of circuitry is called a voltmeter.
- The value of resistance offered by the voltmeter is larger than the ammeter.
- Its resistance value is large than the ammeter.
- The analog meter has a needle that indicates the voltage value that to be calculated.
- To measure the small value of voltage it linked to amplifier circuitry.
- Digital meter indicates voltage in numbers
- The circuit about which voltage is measured voltmeter is connected in parallel combination.
- It is less accurate than the ammeter.
- Its measuring range can be varied.
- Some meter gets power from an outer source and some have its own power source to operate.
- With the transformer different voltmeters used to show the value of volts at input and output.
- For measuring the volt value from some volts to a thousand volts general-purpose voltmeter used
- The digital meter has a higher level of correctness normally one percent than other
Should I use a voltmeter or ammeter?
- Their work like pressure gauges and flow gauges in oil pressure systems. The voltmeter measures electrical pressure in volts and the ammeter measures current flow in amps.
Where should an ammeter be placed in a circuit?
- The ammeter is connected in series combination with a circuit that added resistance to the branch
What is an ammeter used for?
- The ammeter is a measuring device used for measuring current and defining current intensity. The current denoted speed of charged particles flows through the circuit and the measuring unit is AMpere.
When should an ammeter be used?
- Ammeter used for circuit troubleshooting and finding errors in circuits like overloading, and short circuits and measures current at different points of circuits.
What precautions should be taken when using an ammeter?
- Start with a high range of ammeter, off, and discharge circuit before connection or disconnection of ammeter.DC ammeter, check circuit polarity to avoid any short. Not use DC ammeter to ac meter.
What are the three purposes of an ammeter?
- It is used for measuring the net current of the circuit, it also measures current in non-inductive resistance and measures current load branches.
What are the disadvantages of A voltmeter?
- The digital voltmeter gets overheated at the time of voltage measuring, causing faulty readings. For changes in readings, digital meters do not have features to define changes and show error values.
Can you use A multimeter as an ammeter?
- For using a multimeter as an ammeter, connected lean in COM and 10A jack. After that turn knob till points to the 10A setting. That setting measures current about ten ampers which is higher as compared to any current in this type of module.
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That is a detailed post about the difference between ammeter and a voltmeter. If you have any query ask in comments. Thanks for reading. Have a good day.