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Question
Label the different parts A, B, C, D, E, and F. State the functions of each part. Show in the diagram the direction of flow of current.
Solution
A is a voltmeter to measure the potential difference,
B is an electric resistance to control the current in the circuit,
C is the ammeter to measure the magnitude of an electric current,
D is cell to provide electric current in circuit,
E is an electric key to on and off the circuit,
F is the rheostat to control the current in circuit.
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