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Question

If the reading of ammeter A1 in figure (32-E4) is 2.4 A, what will the ammeters A2 and A3 read ? Neglect the resistances of the ammeters.

                                            figure (32-E4)


Solution

A1 = 2.4 A

Since A1 and A2 are in parallel

20×2.4=30×x

X=20×2.430=1.6A

reading in ammeter A2 is 1.6 A

A3=A1+A2=2.4+1.6=4.0A

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