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The label on a portable radio recommends the use of rechargeable nickel-cadmium cells (NiCads), although they have a 1.25 V emf while alkaline cells have a 1.58 V emf. The radio has a 3.300 resistance. (a) Draw a circuit diagram of the radio and its batteries. (Submit a file with a maximum size of 1 MB.) Choose File No file chosen IMG 2442.jpg (b) Calculate the power delivered to the radio (in W) when using NiCad cells each having an internal resistance of 0.0410 Q. 0.462 (c) Calculate the power delivered to the radio (in W) when using alkaline cells each having an internal resistance of 0.210 0. 0.445156695

The label on a portable radio recommends the use of rechargeable nickel-cadmium cells (NiCads), although they have a 1.25 V emf while alkaline cells have a 1.58 V emf. The radio has a 3.300 resistance. (a) Draw a circuit diagram of the radio and its batteries. (Submit a file with a maximum size of 1 MB.) Choose File No file chosen IMG 2442.jpg (b) Calculate the power delivered to the radio (in W) when using NiCad cells each having an internal resistance of 0.0410 Q. 0.462 (c) Calculate the power delivered to the radio (in W) when using alkaline cells each having an internal resistance of 0.210 0. 0.445156695

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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Question
The image contains the following educational exercise related to the use of batteries in a portable radio. --- **Exercise: Analyzing the Power Delivery in a Portable Radio** The label on a portable radio recommends the use of rechargeable nickel-cadmium cells (NiCads), although they have a 1.25 V emf while alkaline cells have a 1.58 V emf. The radio has a 3.30 Ω resistance. **a) Task:** - Draw a circuit diagram of the radio and its batteries. - (Instruction for submission: Submit a file with a maximum size of 1 MB.) **b) Calculation:** - Calculate the power delivered to the radio (in watts) when using NiCad cells, each having an internal resistance of 0.0410 Ω. - Result: 0.462 W **c) Calculation:** - Calculate the power delivered to the radio (in watts) when using alkaline cells, each having an internal resistance of 0.210 Ω. - Result: 0.445156695 W (Note: This answer has been marked incorrect in the image.) **d) Discussion:** - Does this difference seem significant, considering that the radio’s effective resistance is lowered when its volume is turned up? --- This exercise challenges students to apply their understanding of electrical circuits, specifically focusing on the effect of different battery types on the power delivery to the device.
Transcribed Image Text:The image contains the following educational exercise related to the use of batteries in a portable radio. --- **Exercise: Analyzing the Power Delivery in a Portable Radio** The label on a portable radio recommends the use of rechargeable nickel-cadmium cells (NiCads), although they have a 1.25 V emf while alkaline cells have a 1.58 V emf. The radio has a 3.30 Ω resistance. **a) Task:** - Draw a circuit diagram of the radio and its batteries. - (Instruction for submission: Submit a file with a maximum size of 1 MB.) **b) Calculation:** - Calculate the power delivered to the radio (in watts) when using NiCad cells, each having an internal resistance of 0.0410 Ω. - Result: 0.462 W **c) Calculation:** - Calculate the power delivered to the radio (in watts) when using alkaline cells, each having an internal resistance of 0.210 Ω. - Result: 0.445156695 W (Note: This answer has been marked incorrect in the image.) **d) Discussion:** - Does this difference seem significant, considering that the radio’s effective resistance is lowered when its volume is turned up? --- This exercise challenges students to apply their understanding of electrical circuits, specifically focusing on the effect of different battery types on the power delivery to the device.
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