I Review | Constants Part A In (Figure 1), the battery has negligible internal resistance and E = 43.0 V. R1 = R2 = 3.50 N and R4 = 4.00 N. What must the resistance R3 be for the resistor network to dissipate electrical energy at a rate of 285 W? Express your answer with the appropriate units. HÁ R3 = Value Units Figure 1 of 1 Submit Previous Answers Request Answer X Incorrect; Try Again; 8 attempts remaining R1 R2 Provide Feedback Next > R3 R4

I Review | Constants Part A In (Figure 1), the battery has negligible internal resistance and E = 43.0 V. R1 = R2 = 3.50 N and R4 = 4.00 N. What must the resistance R3 be for the resistor network to dissipate electrical energy at a rate of 285 W? Express your answer with the appropriate units. HÁ R3 = Value Units Figure 1 of 1 Submit Previous Answers Request Answer X Incorrect; Try Again; 8 attempts remaining R1 R2 Provide Feedback Next > R3 R4

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter13: Heating Control Devices

Section: Chapter Questions

Problem 28RQ

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The resistance of gold wire used in circuits is usually negligible compared to the components in the circuit, and can be ignored. For long, thin wires, this is no longer true. Calculate the resistance, in ohms, of a length of gold wire, 46.6 cm long, with a cross sectional area of 2.5 mm2. The resistivity of gold is 2.35×10-8 Ω.m. Use 2 significant figures in your answer.
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