College Physics
1st Edition
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:Paul Peter Urone, Roger Hinrichs
Chapter20: Electric Current, Resistance, And Ohm's Law
Section: Chapter Questions
Problem 48PE: Verify the energy unit equivalence that 1 kWh = 3.60106 J.
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Question
Four resistors are connected to a battery with a terminal voltage of 12 V, as shown in the figure below. (Assume R1 = 27.0 Ω and R2 = 70.0 Ω.)
(a) How would you reduce the circuit to an equivalent single resistor connected to the battery? Use this procedure to find the equivalent resistance of the circuit.
____ Ω
(b) Find the current delivered by the battery to this equivalent resistance.
____ A
(c) Determine the power delivered by the battery.
____ W
(d) Determine the power delivered to the 50.0-Ω resistor.
____ W
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