/*! 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 16 Electricity will heat a wire if ... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 6: Problem 16

Electricity will heat a wire if it has A. high voltage B. high current C. high frequency D. DC rather than \(\mathrm{AC}\)

Short Answer

Expert verified
The correct answer is B. high current. High current is the primary reason for heating a wire in an electrical circuit due to the Joule Heating Effect.

Step by step solution

01

Contemplating the Role of Voltage

Voltage (or potential difference) is the energy provided to charge carriers (electrons) to move and create current. While high voltage can generate more current, it is not the primary factor for heating a wire but the current that it can allow to flow.
02

Considering the Impact of Current

In any electrical circuit, when a current flows across the conductor, it generates heat due to the collision of accelerating electrons with atoms of the conductor. This phenomenon is known as the Joule Heating Effect or ohmic heating, and the amount of heat generated is proportional to the square of the current according to the formula \( H = I^2 * R * t \) where H is the heat produced, I is the current, R is the resistance, and t is the time, indicating that heat production is predominantly attributable to high current.
03

Discussing Frequency's Effect

Frequency refers to the number of cycles of AC current in one second. It mostly affects the operative speed of electrical appliances but has no direct impact on the heat produced in a conducting wire.
04

DC vs AC

DC (Direct Current) is the unidirectional flow of electric charge, while AC (Alternating Current) changes its direction periodically. AC or DC doesn't change the core principle behind heating as it is fundamentally influenced by the flow of charges, i.e., current. The heating effect would still persist irrespective of the current type.

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

The north geographic pole of the Earth A. is a south magnetic pole B. has always had the same polarity C. is exactly at the magnetic pole D. none of the above

In a permanent magnet, the magnetism comes from: A. the spin of the electrons B. the motion of the protons C. the high voltage inside the atom D. the electron avalanche

Electricity will heat a wire if it has A. high voltage B. high current C. high frequency D. DC rather than \(\mathrm{AC}\)

Submarines can be detected by their A. magnetism B. electric charge C. backscattered \(x\) -rays D. MRI signal

A volt is a measure of A. energy per electron B. number of electrons per second C. force on the electron D. density of electrons
See all solutions

Recommended explanations on Physics Textbooks

Physical Quantities And Units

Read Explanation

Engineering Physics

Read Explanation

Solid State Physics

Read Explanation

Fundamentals of Physics

Read Explanation

Work Energy and Power

Read Explanation

Oscillations

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.