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Module 7 - CH 7 HW (Homework) PHYS 102
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Module 7 - CH 7 HW (Homework) PHYS 102 AUG 2017 1) A current of 26.9 A flows through an electric heater operating on 220 V. What is the heater's resistance? Ω Current: I = 26.9 A Voltage: V = 220 V Resistance: R = ??? Ω R = V I R = 220 V 26.9 A R = 8.1784 Ω 2) A 590 Ω resistor is connected to a variable-voltage power supply. (a) What voltage is necessary to cause a current of 0.5 A in the resistor? V Current: I = 0.5 A Resistance: R = 590 Ω Voltage: V = ??? V V = R * I V = 590 Ω * 0.5 A V= 295 V (b) What current flows in the resistor when the voltage is 23 V?
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Liberty University
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PHYS 102
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Liberty University
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PHYS 102
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