Figure 1.20. There are two terminals on the left. The top terminal connects to the top end of a resistor which is labeled R S. The bottom end of R S connects to the bottom terminal. The junction of the top terminal and the top end of R S connects to the top, positive end, of a microamp meter. The negative, lower end, connects to the junction of the lower end of R S and the bottom terminal. There is an arrow next to the upper terminal indicating that a current, I, is flowing to the right. There is an arrow next to R S indicating that a current, I S, is flowing downward. There is an arrow next to the meter indicating that a current, I M, is flowing downward. End verbal description.
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