During a research experiment on the conduction of current in the human body, a medical technician attaches one electrode to the wrist and a second to the shoulder of a patient. If 100 mV is applied across the two electrodes and the resulting current is 12.5 mA, what is the overall resistance of the patient’s arm?
Answer to relevant QuestionsA 0.60-m-long copper wire has a diameter of 0.10 cm. What is the resistance of the wire? (a) What is the percentage variation of the resistivity of copper over the temperature range from room temperature (20oC) to 100oC? (b) Assume that a copper wire’s resistance changes due to only resistivity changes over ...Figure 17.18 shows data on the dependence of the current through a resistor on the voltage across that resistor. (a) Is the resistor ohmic? Explain your reasoning. (b) What is the value of its resistance? (c) Use the data ...Given three batteries with voltages of 1.0 V, 3.0 V, and 12 V, what are the minimum and maximum voltages that could be achieved by connecting them in series? Two resistors, 100 Ω and 25kΩ, are rated for a maximum power output of 1.5 W and 0.25 W, respectively. (a) What is the maximum voltage that can be safely applied to each resistor? (b) What is the maximum current that ...
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