In the electric circuit shown in the figure below, label the parts A, B, C, D, E, and F. State the function of each part. Show in the diagram the direction of flow of current.



The diagram below shows the direction of flow of current marked by red arrows and the labelled parts — A, B, C, D, E, and F


Part Function
Ammeter An ammeter is an instrument used to measure the magnitude of current flowing in a circuit.
Cell It acts as a source of direct current for the circuit.
key It is used to put the current on and off in the circuit.
Load An appliance which is connected in a circuit.
Voltmeter A voltmeter is used to measure the potential difference between two points of a circuit.
Rheostat A rheostat is a device by which resistance in a circuit can be varied continuously.


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