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Use the information below to generate a citation. Then you must include on every digital page view the following attribution: If you are redistributing all or part of this book in a digital format, Then you must include on every physical page the following attribution: If you are redistributing all or part of this book in a print format, First, an example of a series circuit: Here, we have three resistors (labeled R 1. Want to cite, share, or modify this book? This book is Ohms Law: I V / R Voltage Drop of individual resistor: V IR. Thus the energy supplied by the voltage source and the energy converted by the resistor are equal.
Some ceramic insulators, such as those used to support power lines, have resistances of 10 12 Ω 10 12 Ω size 12 flows through each. Resistances range over many orders of magnitude. As we shall see in Resistance and Resistivity, resistance usually increases with temperature, and so the bulb has a lower resistance when it is first switched on and will draw considerably more current during its brief warm-up period. This is a relatively small resistance, but it is larger than the cold resistance of the headlight.
