Homework Help is Here – Start Your Trial Now!
Engineering
Electrical Engineering
1. Answer part (c) of the problem. Show work. 2. Consider part (d) of the problem. How fast would the wind need to be to run the same battery down in 22 hours? 3. Which wind is faster? Wind that cools the anemometer to 0°C or wind that increases the power output of the resistive wire by 4.00%?

1. Answer part (c) of the problem. Show work. 2. Consider part (d) of the problem. How fast would the wind need to be to run the same battery down in 22 hours? 3. Which wind is faster? Wind that cools the anemometer to 0°C or wind that increases the power output of the resistive wire by 4.00%?

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...
See similar textbooks
icon
Related questions
icon
Concept explainers
Question
100%
I solved #1, but I need help with #2 and #3 please! Thank you!
1. Answer part (c) of the problem. Show work. 2. Consider part (d) of the problem. How fast would the wind need to be to run the same battery down in 22 hours? 3. Which wind is faster? Wind that cools the anemometer to 0°C or wind that increases the power output of the resistive wire by 4.00%?
Transcribed Image Text:1. Answer part (c) of the problem. Show work. 2. Consider part (d) of the problem. How fast would the wind need to be to run the same battery down in 22 hours? 3. Which wind is faster? Wind that cools the anemometer to 0°C or wind that increases the power output of the resistive wire by 4.00%?
A hot wire anemomenter, as shown in Figure 1, is a device used to measure wind speed by measuring the current though a circuit that includes a temperature- Current I dependent resistor exposed to the wind. Fluid The circuit diagram of the simplified anemometer is shown in Figure 2. The wire exposed to the wind is made of platinum, with a radius of r = 4.00 µm, and a length of l = 1.60 mm. The wind- speed chilling effect on the wire temperature is represented by the equation, Velocity U Wire support Sensor (thin wire) Figure 1: Hot wire anemometer. T(vwina) = 293 K – 0.5vwind – 0.05vwind %3D - where vwind is measured in m/s and To = 293 K represents still air. The resistivity of platinum is Po = 10.6 × 10-8 N · m, and its temperature coefficient of resistivity is a = 3.93 × 10-3 K-1. The rest of the wire in the circuit is assumed to be without resistance. The battery for the anemometer provides a constant 12.0 V. 3 RCT) (a) Write a symbolic expression of wind speed as a function of current, v(1), measured through the ammeter (the “A" in the figure which is a device that measures current). wind (b) What is the wind speed across the platinum wire of Figure 2: Anemometer circuit. the anemometer when the ammeter measures a current increase of AI = 0.391 A? (c) If a current was measured of 4.00 A, but a more sophisticated radiometric anemometer measured a wind speed of 20 m/s, then what is the percent difference between the hot wire measurement and the accepted radiometric measurement? (d) When the anemometer is left on while outside in consistent 13.0 m/s wind, the fully charged battery runs down after 24.0 hours. If instead the anemometer is left on while sitting in a room with no wind and T = T, = 20.0 °C, then how long will the battery last?
Transcribed Image Text:A hot wire anemomenter, as shown in Figure 1, is a device used to measure wind speed by measuring the current though a circuit that includes a temperature- Current I dependent resistor exposed to the wind. Fluid The circuit diagram of the simplified anemometer is shown in Figure 2. The wire exposed to the wind is made of platinum, with a radius of r = 4.00 µm, and a length of l = 1.60 mm. The wind- speed chilling effect on the wire temperature is represented by the equation, Velocity U Wire support Sensor (thin wire) Figure 1: Hot wire anemometer. T(vwina) = 293 K – 0.5vwind – 0.05vwind %3D - where vwind is measured in m/s and To = 293 K represents still air. The resistivity of platinum is Po = 10.6 × 10-8 N · m, and its temperature coefficient of resistivity is a = 3.93 × 10-3 K-1. The rest of the wire in the circuit is assumed to be without resistance. The battery for the anemometer provides a constant 12.0 V. 3 RCT) (a) Write a symbolic expression of wind speed as a function of current, v(1), measured through the ammeter (the “A" in the figure which is a device that measures current). wind (b) What is the wind speed across the platinum wire of Figure 2: Anemometer circuit. the anemometer when the ammeter measures a current increase of AI = 0.391 A? (c) If a current was measured of 4.00 A, but a more sophisticated radiometric anemometer measured a wind speed of 20 m/s, then what is the percent difference between the hot wire measurement and the accepted radiometric measurement? (d) When the anemometer is left on while outside in consistent 13.0 m/s wind, the fully charged battery runs down after 24.0 hours. If instead the anemometer is left on while sitting in a room with no wind and T = T, = 20.0 °C, then how long will the battery last?
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 6 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Thermistors
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
Electrical Engineering
ISBN:
9780133923605
Author:
Robert L. Boylestad
Publisher:
PEARSON
Delmar's Standard Textbook Of Electricity
Delmar's Standard Textbook Of Electricity
Electrical Engineering
ISBN:
9781337900348
Author:
Stephen L. Herman
Publisher:
Cengage Learning
Programmable Logic Controllers
Programmable Logic Controllers
Electrical Engineering
ISBN:
9780073373843
Author:
Frank D. Petruzella
Publisher:
McGraw-Hill Education
Fundamentals of Electric Circuits
Fundamentals of Electric Circuits
Electrical Engineering
ISBN:
9780078028229
Author:
Charles K Alexander, Matthew Sadiku
Publisher:
McGraw-Hill Education
Electric Circuits. (11th Edition)
Electric Circuits. (11th Edition)
Electrical Engineering
ISBN:
9780134746968
Author:
James W. Nilsson, Susan Riedel
Publisher:
PEARSON
Engineering Electromagnetics
Engineering Electromagnetics
Electrical Engineering
ISBN:
9780078028151
Author:
Hayt, William H. (william Hart), Jr, BUCK, John A.
Publisher:
Mcgraw-hill Education,
SEE MORE TEXTBOOKS