/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Problem 8 When a large electric load such ... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 25: Problem 8

When a large electric load such as a washing machine or oven comes on, lights throughout a house often dim. Why?

Short Answer

Expert verified
Lights often dim in a house when a large electrical load such as a washing machine or oven is turned on because these large appliances draw a significant amount of the limited power supplied to the house. This large draw of power reduces the amount of power available for other devices like lights, causing them to dim. All devices in the house share the power from the same supply line, hence when these appliances draw more power, it results in a decrease in voltage across other appliances, leading to dimmed lights.

Step by step solution

01

Basic Principle

Electricity in a house is delivered by a single supply line from the electric company, which is shared by all the appliances and lights. So, the total electric power available is distributed between all the electrical devices.
02

Load Increase

When a large electric appliance such as a washing machine or oven is turned on, a significant load increase occurs, as these devices require a lot of power to operate. As a result, they draw more current from the supply line.
03

Power Distribution

The increased load caused by the appliance reduces the amount of current available for other electrical devices, such as lights. Hence, the lights receive less electric power and become dimmer.
04

Voltage Drop

Another important thing to explain here is the concept of voltage drop. The voltage drop across an electrical circuit is proportional to the current flow through the circuit. As the large appliances draw more current, there can be a small decrease in voltage across other appliances such as lights, and this falls the brightness of the lights, they appear dim.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Show that a battery delivers the most power when the load resistance across its terminals is equal to its internal resistance. (This is not the way to treat a battery, but it's the basis for load matching in amplifiers; see Problem \(69 .\) )

What resistance should you place in parallel with a \(56-\mathrm{k} \Omega\) resistor to make an equivalent resistance of \(45 \mathrm{k} \Omega ?\)

You have a \(1.0-\Omega,\) a \(2.0-\Omega,\) and a \(3.0-\Omega\) resistor. What equivalent resistances can you form using all three?

The voltage across a charging capacitor in an \(R C\) circuit rises to \(1-1 / e\) of the battery voltage in \(5.0 \mathrm{ms}\). (a) How long will it take to reach \(1-1 / e^{3}\) of the battery voltage? (b) If the capacitor is charging through a \(22-\mathrm{k} \Omega\) resistor, what's the capacitance?

A \(270-\Omega\) resistor is connected across a battery and a 31 -mA current flows. When the resistor is replaced with a \(120-\Omega\) resistor, the current increases to 63 -mA. Find (a) the battery's voltage and (b) its internal resistance.
See all solutions

Recommended explanations on Physics Textbooks

Kinematics Physics

Read Explanation

Energy Physics

Read Explanation

Electricity and Magnetism

Read Explanation

Physical Quantities And Units

Read Explanation

Waves Physics

Read Explanation

Fields in Physics

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.