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ECE 1250 Video Lecture: L2-1 Ohm's Law and Dividers Time Slide Topic 0:00 1 Title 0:04 2 Ohm's Law 0:34 3 Ideal Voltage and Current Sources 0:38 4 Voltage = Potential 0:49 5 Current = Flow 0:54 6 Resistance to Flow of Current 0:59 7 Water-Circuit Analogy 1:15 8 Ohm's Law: v = iR 1:53 9 Ohm's Law: v = iR (How much voltage) 1:57 10 Ohm's Law: v = iR (How much current) 2:17 11 Ohm's Law: v = iR (How much resistance) 2:38 12 Resistor Color Codes 4:04 13 I-V Curves used for diagnosis, design, etc. 4:43 14 I-V Curves for LED 5:02 15 Resistance (R) and Resistivity () 6:01 16 Resistance can be used as a sensor Measuring Resistance of Sea Ice 6:23 17 Other Resistive Sensors 6:42 18 Conductivity and resistivity of some common materials 7:28 19 Superconductivity 7:49 20 Resistance can be used to control Voltage and Current 8:04 21 Variable Resistors 8:48 22 Conclusion -- Ohm's Law 9:08 23 Scenic Utah: Antelope Island, Great Salt Lake