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

Birds resting on high-voltage power lines are a common sight. The copper wire on which a bird stands is 2.2 cm in diameter and carries a current of 50. A. If the bird’s feet are 4.0 cm apart, calculate the potential difference between its feet.

To determine
The potential difference between bird’s feet.

Explanation

Given Info:

The bird stands on the copper wire with diameter 2.2cm .

Explanation:

The wire carries the current 50A Birds feet are 4.0cm apart.

Formula to calculate the resistance is,

R=ρLA

  • R is the resistance of wire,
  • L is the length of wire,
  • A is the area of cross section of the wire,
  • ρ is the resistivity of the copper,

Equation to calculate the area of cross section of wire is,

A=πd24

  • d is the diameter of the wire,

Formula to calculate the potential difference across the birds feet  is,

ΔV=IR

  • ΔV is the potential difference across the birds feet,
  • I is the current through the wire,

Substitute πd2/4 for A, ρL/A for R , and 50 A for I in the above equation to rewrite ΔV .

ΔV=I(4ρLπd2)

Substitute 50 A for I , 1.7×108Ωm for ρ , 4

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

Digestible carbohydrates are absorbed as through the small intestinal wall and are delivered to the liver, whic...

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

What is the abscission zone?

Biology (MindTap Course List)

What impact has recombinant DNA technology had on genetics and society?

Human Heredity: Principles and Issues (MindTap Course List)