A student investigated how length affects resistance of a wire.
Figure 1 shows the circuit the student used.
The student took measurements using the meters X and Y.
Name meters X and Y.

The resistance of a wire is directly proportional to the length of the wire. That is the longer the length of the wire, the higher the resistance and the shorter the length of the wire, the smaller the resistance.

Ammeter is a measuring instrument used to measure the current in a circuit by connecting the meter in series with the circuit.

Ammeter is a measuring instrument used to measure the potential difference between two points by connecting the meter in parallel to the points.

Meter X is an ammeter since it is connected in series and meter Y is a voltmeter because it is connected in parallel.

A student investigated how length affects resistance of a wire. Figure 1 shows the circuit the student used. The student took measurements using the meters X and Y. Name meters X and Y.

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A student investigated how length affects resistance of a wire.
Figure 1 shows the circuit the student used.
The student took measurements using the meters X and Y.
Name meters X and Y.