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Fundamentals
Published in Christopher R Robertson, Fundamental Electrical and Electronic Principles, 2008
An ammeter is a current measuring instrument. It has to be connected into the circuit in such a way that the current to be measured is forced to flow through it. If you need to measure the current flowing in a section of a circuit that is already connected together, you will need to ‘break’ the circuit at the appropriate point and connect the ammeter in the ‘break’. If you are connecting a circuit (as you will frequently have to do when carrying out practical assignments), then insert the ammeter as the circuit connections are being made. Most ammeters will have their terminals colour coded: red for the positive and black for the negative.
EAL Unit ELEC1/08: Electrical science, principles and technology
Published in Peter Roberts, Electrical Installation Work, 2017
An ammeter is used to measure the amount of electrical current that flows in a circuit. To measure current, an ammeter has to be inserted in series so that it becomes part of the circuit as shown in Figure 2.43a. The resistance of an ammeter is therefore designed to be as low as possible to minimise any disruption.
Experimental analysis on passive cooling of flat photovoltaic panel with heat sink and wick structure
Published in Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2020
Parkunam N, Lakshmanan Pandiyan, Navaneethakrishnan G, Arul S, Vijayan V
The numbers represent the sensor points. The positive and negative represents the output points from the panel. The voltmeter is connected in parallel for voltage measurement. The ammeter is connected in series for current measurement. The various loads are connected to measure the zero current and maximum voltage.