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Iwo resistors Rị and R2are made of the same conducting material. The length of the wire 1 for resistor R1 is half of the lengti of the wire 2 for resistor R2. The diameter of wire 1 is also half of the diameter of wire 2. The two resistors are connected in parallel with a battery, as shown in the diagram. R1 R2 + What is the ratio R2/Rj of their resistances? [ Select] What is the ratio J2/J1 of their current densities? [Select ]

Iwo resistors Rị and R2are made of the same conducting material. The length of the wire 1 for resistor R1 is half of the lengti of the wire 2 for resistor R2. The diameter of wire 1 is also half of the diameter of wire 2. The two resistors are connected in parallel with a battery, as shown in the diagram. R1 R2 + What is the ratio R2/Rj of their resistances? [ Select] What is the ratio J2/J1 of their current densities? [Select ]

College Physics
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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The first box has options (2, 1/4, 1/2, 1, 4) and the second box has options (1/2, 1, 2, 4, 1/4)

Two resistors Rị and R2are made of the same conducting material. The length of the wire 1 for resistor R1 is half of the length of the wire 2 for resistor R2. The diameter of wire 1 is also half of the diameter of wire 2. The two resistors are connected in parallel with a battery, as shown in the diagram. R1 R2 3. What is the ratio R2/R1 of their resistances? [ Select ) What is the ratio J2/J1 of their current densities? [ Select ]
Transcribed Image Text:Two resistors Rị and R2are made of the same conducting material. The length of the wire 1 for resistor R1 is half of the length of the wire 2 for resistor R2. The diameter of wire 1 is also half of the diameter of wire 2. The two resistors are connected in parallel with a battery, as shown in the diagram. R1 R2 3. What is the ratio R2/R1 of their resistances? [ Select ) What is the ratio J2/J1 of their current densities? [ Select ]
Useful Constants: k = 9.00 × 10º Nm² C2 8.85 x 10-12 C² Nm2 %3D e = 1.6 x 10-19 C me = 9.11 x 10 mp = 1.67 × 10-27kg %3D -27 mn = 1.68 x 10 %3D
Transcribed Image Text:Useful Constants: k = 9.00 × 10º Nm² C2 8.85 x 10-12 C² Nm2 %3D e = 1.6 x 10-19 C me = 9.11 x 10 mp = 1.67 × 10-27kg %3D -27 mn = 1.68 x 10 %3D
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