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A. Answer the following problems. 1. In the following circuits, nd the unknowns. (5pts.) 2. A circuit with a 509 resistor is removed and replaced

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A. Answer the following problems. 1. In the following circuits, nd the unknowns. (5pts.) 2. A circuit with a 509 resistor is removed and replaced by a IOOQ resistor. What happens to the current in the circuit? (5pm.) 3. Over the course of a 12-hour day, 5.2 i1104 C of charge pass through a typical computer. Determine the current for such a computer. (2pm.) 4. Determine the amount of time that the following devices would have to be used before 1.0x10\" C (1 million Coulombs) of charge passes through them. (5pts.) a. LED light (I=D.0084 A) b. Incandescent light (I=0.034 A) c. till-Watt incandescent light bulb =0.25 A) d. Bathroom light {I=1. A} 5. Determine the overall resistance of a SID-meter length and a {1.143 cm diameter wire made of the following materials. (5pts.) a. copper {resistivity = 1.675110\" an) b. silver (resistivity = 1.5mm Elm) c. aluminum (resistivity = 2.653110415 Qm) d. iron (resistivity = 9.?1x10'\" Elm} 6. Calculate the amount of power dissipated by an electric heating element if the generator's output voltage is 110 volts and the heater's resistance is 2.5 ohms. Then, calculate the power dissipated by the same heater if the generators output voltage is doubled. (31113.) 7. Describe and explain the relationship of current, voltage and resistance. (lpts.)

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