9. The following question is about power dissipation in a resistor, which we didnÃ¢ÂÂt really cover in class. This topic is fairly easy though. In a circuit, all the power delivered by the battery must be dissipated by the elements to the circuit. This is simply a statement of the conservation of energy. How much energy dis- sipated depends on the resistance of the element and the voltage across the resistor, or the current through it. The relevant equa- tions for the problems are as follows. For a circuit element, the power dissipated (or generated) is P= IV, where V and I are the voltage across and current through a circuit element. We know that a resistor obeys OhmÃ¢ÂÂs Law V = IR, which means that for a resistor, the power dissipated is P = 1²R=V²/R. Consider the following two circuits with identical batteries and re- sistors. A В C R R RSRS R If the power dissipated by the resistor in circuit A is P, what is the power dissipated by one resistor in circuit B? If the power dissipated by the resistor in circuit A is P, what is the power dissipated by one resistor in circuit C?

9. The following question is about power dissipation in a resistor, which we didnÃ¢ÂÂt really cover in class. This topic is fairly easy though. In a circuit, all the power delivered by the battery must be dissipated by the elements to the circuit. This is simply a statement of the conservation of energy. How much energy dis- sipated depends on the resistance of the element and the voltage across the resistor, or the current through it. The relevant equa- tions for the problems are as follows. For a circuit element, the power dissipated (or generated) is P= IV, where V and I are the voltage across and current through a circuit element. We know that a resistor obeys OhmÃ¢ÂÂs Law V = IR, which means that for a resistor, the power dissipated is P = 1²R=V²/R. Consider the following two circuits with identical batteries and re- sistors. A В C R R RSRS R If the power dissipated by the resistor in circuit A is P, what is the power dissipated by one resistor in circuit B? If the power dissipated by the resistor in circuit A is P, what is the power dissipated by one resistor in circuit C?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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