A student investigates the resistance of wire in different circuit arrangements. The circuit shown in the diagram below is used.

The student measures the current I in the wire. She then measures the PD V across AB, AC, and AD. The student's readings are shown in the table below.

a. Copy the table. Then, using he diagram, record in your table the length I of each section of wire.

b. Copy the diagrams below and show the positions of the pointers of the ammeter reading 0.375 A, and the voltmeter reading 1.50 V.

c. Calculate the resistance R of the sections of wire AB, AC, and AD using the equation R = V/I. Record these values of R, to a suitable number of significant figures, in the table.

d. Complete the column heading for the R column of the table.

e. Use your results to predict the resistance of a 1.50 m length of the same wire. Show your working. 

Transcribed Image Text:

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