Figure 6.5. There is a battery on the left with its negative terminal grounded. The positive end goes to a resistor labeled R1. The other end of R1 goes to one terminal of a voltmeter. The other terminal is grounded. The junction of R1 and the voltmeter goes to one end of R2. The other end of R2 goes to the negative terminal of a power supply. The positive terminal is grounded. End verbal description.
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