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Current is the amount of electrons flowing. An ammeter reads this value. Typically an ammeter will be placed in series to measure this flow; there are also "clamp on" ammeters that use a small CT. When placed around a wire, the power flowing in the wire will induce a current in the CT, allowing measuremnt without lifting wires.
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∙ 14y ago
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What is a conventional current?
Conventional current shows current flow from + to - amp meters are labeled this way (conventional current flow) (hole flow) Physics shows that electrons are moving or flowing from - to + (electron flow) Tubes (deforest valves) sort of blew conventional current away semiconductors with different doping materials confuse it more so most new books relate to electron flow voltmeters ammeters are labeled the same since the 18th century
Can DC ampere be measured with AC amp meter?
No. The ammeter must be designed to measure DC. Some clamp-on ammeters are designed to measure both AC and DC.
What instrument measures current and voltage?
Voltmeter.Current and voltage are two different things. They are closely related but a current does not imply a voltage and nor does a voltage imply a current.A volt meter is used to measure a voltage. The voltage may be across a battery or other power source. It may be across a component such as a resistor or a group of components. If a current is flowing through a resistor, there will be a voltage across the resistor. Similarly, if there is a voltage across a resistor, there will be a current flowing.Current is measured using an ammeter - Current is measured in amps, hence the name of the meter.The two meters together can be used to analyze most electronic circuits and they are the two most important items of test equipment in electronics. Devices called multi-meters are combined ammeters and voltmeters and are in every electronics engineer's toolbox.
Why does the voltmeter input have a much higher resistance than the current input?
Anything that a voltmeter is measuring has some internal output impedance. If the voltmeter had a low input impedance, these two impedances would form a voltage divider and reduce the voltage measured. The voltmeter has a high input impedance so that it does not affect ("load down") the thing it is measuring.
Why current fluxcuate in collector current?
I suppose you mean "fluctuate". Collector current depends mostly on the base current, If the base current changes, the collector current will change in proportion.
What do ammeters do?
Ammeters measure the current flowing through a circuit
How are ammeters added to circuits?
Ammeters are added in series to the circuit to be monitored.
What is a current measured in?
Ammeters (amps) An Ammeter is a meter for measuring electrical current, the unit of which is the Ampere (amp)
A use of periodic functions in real life?
determing current flow in ammeters
What do ammeters mesure?
ammeter measures the current flowing through the circuit in the unit of amphere.
How would you illustrate the conversation of current using the ammeter?
I don't belive you can. Ammeters just show how many amps are flowing through a particular current
How would you connect a voltmeter?
A: It must be connected across the device ammeters cannot measure DC current directly
Why ammeters are connected in series?
Because, in series connection the current is same in all resistors, so the ammeter deflection for finding current is same in each ammeter.
Advantages of current transformer?
A CT allows:heavy currents to be measured using conventional ammeters, andelectrically-isolates the ammeters from high-voltage primary circuits.
How do you predict about the reading on the two ammeters?
when two ammeters look dirrent
Who invented the ammeters?
An ammeter is a measuring instrument used to measure the electric current in a circuit and was invented by Hans Christian Ørsted
Why you connect ammeters in series in network circuits?
Because ammeters have low resistance. If you connected them in parallel, all the current would flow through the ammeter instead of the circuit you were trying to test, possibly frying the meter but certainly invalidating the measurement.
