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An idealized voltmeter is connected across the terminals of a 15.0 $\mathrm{V}$ battery, and a 75.0$\Omega$ appliance is also connected across its terminals. If the voltmeter reads $11.3 \mathrm{V} :$ (a) how much power is being dissipated by the appliance, and (b) what is the internal resistance of the battery?
(a) 1.7 $\mathrm{W}$ (b) 24.5$\Omega$
Physics 102 Electricity and Magnetism
Chapter 19
Current, Resistance, and Direct-Current Circuit
Electric Charge and Electric Field
Gauss's Law
Electric Potential
Capacitance and Dielectrics
Current, Resistance, and Electromotive Force
Direct-Current Circuits
Electromagnetic Induction
University of Washington
Hope College
University of Winnipeg
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