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

Transcranial magnetic stimulation (TMS) is a noninvasive technique used to stimulate regions of the human brain. A small coil is placed on the scalp, and a brief burst of current in the coil produces a rapidly changing magnetic field inside the brain. The induced emf can be sufficient to stimulate neuronal activity. One such device generates a magnetic field within the brain that rises from zero to 1.5 T in 120 ms. Determine the induced emf within a circle of tissue of radius 1.6 mm and that is perpendicular to the direction of the field.

To determine
The induced emf with in a circle of tissue of radius 1.6mm and that is perpendicular to the direction of the field.

Explanation

Given Info:

The device generates the magnetic field from zero to 1.5T in 120.0ms .

The area of the circle of tissue is,

A=πr2 (I)

  •  r is the radius of the tissue

Formula to calculate the induced emf is,

ε=ΔϕΔt=(ΔBcosθ)AΔt=((BfBi)cosθ)AΔt (II)

  • Bf is the final magnetic field
  • Bi is the initial magnetic field
  • θ is the angle between the magnetic field and the normal of circle of tissue
  • A is the area of tissue
  • Δt is the time taken for the magnetic field change

Substitute equation (I) in (II),

ε=((BfBi)cosθ)(πr2)Δt

Since the circle of tissue is perpendicular to the direction of field, θ=0

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

Both carbohydrates and protein have 4 calories per gram. T F

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

A represents a quantitative observation.

Introductory Chemistry: A Foundation

How may our senses be enhanced?

An Introduction to Physical Science

Where should the police car in Figure 6-9 have parked to make a good measurement?

Horizons: Exploring the Universe (MindTap Course List)

Distinguish between electric potential and electric potential energy.

Physics for Scientists and Engineers, Technology Update (No access codes included)