BuyFindarrow_forward

College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300

Solutions

Chapter
Section
BuyFindarrow_forward

College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300
Textbook Problem

A coffee maker is rated at 1 200 W, a toaster at 1 100 W, and a waffle maker at 1 400 W. The three appliances are connected in parallel to a common 120-V household circuit. (a) What is the current in each appliance when operating independently? (b) What total current is delivered to the appliances when all are operating simultaneously? (c) Is a 15-A circuit breaker sufficient in this situation? Explain.

(a)

To determine

The current passing through coffee maker, toaster and waffle maker.

Explanation

Given Info: The rated power of the coffee maker is 1200 W and toaster is 1100 W, the potential difference across the household circuit is 120V.

Formula to calculate the current drawn by coffee maker operating separately is,

  IC=PCΔV

  • IC is the current drawn by coffee maker,
  • PC is the rated power of the coffee maker,
  • ΔV is the potential difference across the household circuit,

Substitute 1200W for PC and 120V for ΔV.

  IC=1200W120V=10A

Thus, the current drawn by coffee maker is 10A.

Formula to calculate the current drawn by toaster operating separately is,

  IT=PTΔV

  • IT is the current drawn by toaster,
  • PT is the rated power of the toaster,
  • ΔV is the potential difference across the household circuit,

Substitute 1100W for PT and 120V for ΔV

(b)

To determine

The total current delivered to the three appliances.

(c)

To determine

The total required current of 15 A exceeds the limit of the circuit breaker.

Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started

Additional Science Solutions

Find more solutions based on key concepts

Show solutions add

What are the moral implications of using alcohol during pregnancy?

Understanding Nutrition (MindTap Course List)

Which of the following is not one of the ways fats are useful in foods? Fats contribute to the taste and smell ...

Nutrition: Concepts and Controversies - Standalone book (MindTap Course List)

Which groups or protists would you be most likely to find as fossils? Why?

Biology: The Unity and Diversity of Life (MindTap Course List)