A portable coffee heater supplies a potential difference of 12.0 V across a Nichrome heating element with a resistance of 1.92 Ω. (a) Calculate the power (in W) consumed by the heater. W (b) How many minutes would it take to heat 1.13 kg of coffee from 20.6°C to 46.2°C with this heater? Coffee has a specific heat of
A portable coffee heater supplies a potential difference of 12.0 V across a Nichrome heating element with a resistance of 1.92 Ω. (a) Calculate the power (in W) consumed by the heater. W (b) How many minutes would it take to heat 1.13 kg of coffee from 20.6°C to 46.2°C with this heater? Coffee has a specific heat of
Chapter10: Direct-current Circuits
Section: Chapter Questions
Problem 25P: A 12.0-V emf automobile battery has a terminal voltage of 16.0 V when being charged by a current of...
Related questions
Question
A portable coffee heater supplies a potential difference of 12.0 V across a Nichrome heating element with a resistance of 1.92 Ω.
(a)
Calculate the power (in W) consumed by the heater.
W
(b)
How many minutes would it take to heat 1.13 kg of coffee from 20.6°C to 46.2°C with this heater? Coffee has a specific heat of
4184
.
Neglect any energy losses to the environment.J |
(kg · °C) |
min
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 2 steps
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Recommended textbooks for you
Physics for Scientists and Engineers: Foundations…
Physics
ISBN:
9781133939146
Author:
Katz, Debora M.
Publisher:
Cengage Learning
Physics for Scientists and Engineers: Foundations…
Physics
ISBN:
9781133939146
Author:
Katz, Debora M.
Publisher:
Cengage Learning