Homework Help is Here – Start Your Trial Now!
Engineering
Electrical Engineering
out when finished experiment. Mwatyr 0.972 kg ed: Kettle before : 322.647 kwh after : 322. 745 kwh t#= lo0i tiz 19.5° KetHe Ming = 0.95 Kg Cwaler : 4.182 KJ/ng L: 322.745 kwh bia 21% miçrowave before: 322.745 kwh bis 212 : 322. 848 Kwh tf = 73% heter kg) with std 240V outlet plug) es and a towel. after run time : 5 minutes The masses above are the water mass; the kettle itself was plastic and weighed about 620g; the pyrex jug weighed 850g when empty.

out when finished experiment. Mwatyr 0.972 kg ed: Kettle before : 322.647 kwh after : 322. 745 kwh t#= lo0i tiz 19.5° KetHe Ming = 0.95 Kg Cwaler : 4.182 KJ/ng L: 322.745 kwh bia 21% miçrowave before: 322.745 kwh bis 212 : 322. 848 Kwh tf = 73% heter kg) with std 240V outlet plug) es and a towel. after run time : 5 minutes The masses above are the water mass; the kettle itself was plastic and weighed about 620g; the pyrex jug weighed 850g when empty.

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
Question

question and data in photo. Just need the efficenty part for the microwave and kettle

Cwaten = 4.182 KJ/b. mil ave auskwh tiz 21c out when finished experiment. Mwatr 0.972 kg ed: Kettle before : 322.647 kwh after: 322. 745 kwh tiz19.5% te = loo°c Kettle Mong 0.795 Kg = heter before: 322.745kwh bis after : 322. 848 Kwh tf = 73% run time : 5 minutes kg) with std 240V outlet plug) es and a towel. The masses above are the water mass; the kettle itself was plastic and weighed about 620g; the pyrex jug weighed 850g when empty.
Transcribed Image Text:Cwaten = 4.182 KJ/b. mil ave auskwh tiz 21c out when finished experiment. Mwatr 0.972 kg ed: Kettle before : 322.647 kwh after: 322. 745 kwh tiz19.5% te = loo°c Kettle Mong 0.795 Kg = heter before: 322.745kwh bis after : 322. 848 Kwh tf = 73% run time : 5 minutes kg) with std 240V outlet plug) es and a towel. The masses above are the water mass; the kettle itself was plastic and weighed about 620g; the pyrex jug weighed 850g when empty.
Activity 1: Heat 0.5 kg water in the microwave. Measure the amount of power consumed. From the initial and final temperature, calculate the efficiency of heating i.e. proportion of useful energy. Heat 1L of water in the kettle. Measure the power consumed in boiling the jug. Don't measure the final temperature unless you can do this safely (how?) Calculate the efficiency.
Transcribed Image Text:Activity 1: Heat 0.5 kg water in the microwave. Measure the amount of power consumed. From the initial and final temperature, calculate the efficiency of heating i.e. proportion of useful energy. Heat 1L of water in the kettle. Measure the power consumed in boiling the jug. Don't measure the final temperature unless you can do this safely (how?) Calculate the efficiency.
Expert Solution
steps

Step by step

Solved in 3 steps with 2 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Electric heating unit
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.
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