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AP Physics 2
11.7 Kirchhoff’s Junction Rule
11.6 Kirchhoff’s Loop Rule
11.5 Compound Direct Current (DC) Circuits
11.3 Resistance, Resistivity, and Ohm’s Law
AdvancedMCQGraphicalMathematicalConceptual22.2k
Circuit schematic with battery, fixed resistors, variable resistor, and ammeter.
Circuit schematic with battery, fixed resistors, variable resistor, and ammeter.
An ideal battery with potential difference \(\varepsilon\) is connected in series with a fixed resistor of resistance \(R_1\). This combination is connected across a parallel network consisting of a second fixed resistor of resistance \(R_2\) and a variable resistor of resistance \(R_x\). An ammeter of negligible resistance measures the current \(I_x\) through the variable resistor as \(R_x\) is varied. Which of the following identifies the quantities that should be plotted on the vertical and horizontal axes to obtain a linear graph, along with the expressions for the slope and vertical intercept of the resulting line?

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