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Related Concept Videos

Electric Flux01:15

Electric Flux

11.0K
The concept of flux describes how much of something goes through a given area. More formally, it is the dot product of a vector field within an area. For a better understanding, consider an open rectangular surface with a small area that is placed in a uniform electric field. The larger the area, the more field lines go through it and, hence, the greater the flux; similarly, the stronger the electric field (represented by a greater density of lines), the greater the flux. On the other hand, if...
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Introduction to Types of Flows01:23

Introduction to Types of Flows

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Fluid flows are categorized by dimensionality and behavior, with one-dimensional flow being the simplest form, where properties like velocity and pressure change only along a single axis. Water moving through straight pipes exemplifies this flow type, as variations in other directions are minimal. One-dimensional analysis helps simplify understanding such flows, focusing solely on changes along the pipe's length.
Two-dimensional flow involves changes in both length and height, as seen in...
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Magnetic Flux01:18

Magnetic Flux

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The magnetic flux measures the number of magnetic field lines passing through a given surface area. The SI unit for magnetic flux is the weber (Wb). Magnetic flux is a scalar quantity. It depends on three factors: the strength of the magnetic field B, the area through which the field lines pass, and the relative orientation of the field with the surface area.
Suppose a surface is divided into elements of area dA. For each element, the component of the magnetic field that is normal to the...
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Calculation of Electric Flux01:25

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Consider the electric field of an oppositely charged, parallel-plate system and an imaginary box between those plates. Let the bottom face of the box be ABCD, and the top face be FGHK. The electric field between the plates is uniform and points from the positive plate toward the negative plate. The calculation of this field's flux through the box's various faces shows that the net flux through the box is zero. Why does the flux cancel out here?
3.4K
Plane Potential Flows01:23

Plane Potential Flows

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Plane potential flows simplify fluid motion by assuming the fluid to be irrotational and incompressible. These characteristics allow these flows to be described by a velocity potential function, ϕ, representing the flow speed in a given direction, and a stream function, ψ, that visualizes the flow path, both governed by Laplace's equation. These parameters help in estimating flow patterns, velocity distributions, and pressure fields around various hydraulic structures.
Uniform...
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Characteristics of Fluids01:20

Characteristics of Fluids

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When a force is applied parallel to the top surface of a solid, it resists the applied force due to the internal frictional forces between the layers of the solid known as shearing resistance. However, when the force is removed, the shearing forces restore the original shape of the solid. Other deformation forces also cause temporary changes in shape if the forces are not beyond a threshold magnitude. Solids tend to retain their shape, making the study of their rest and motion easier. Beyond...
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"Frankie" Revisited: Foundational Concepts In Flux--An Introduction to the Section.

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    This historical review examines the "Frankie" case, highlighting its revolutionary impact and contemporary critiques. Child analysts find value in updating its theories with nonlinear thinking for modern clinical data organization.

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    Area of Science:

    • Child psychology
    • Psychoanalytic theory
    • Clinical case studies

    Background:

    • The "Frankie" case, a seminal psychoanalytic study from over sixty years ago, is revisited.
    • This historical review contextualizes the case within its original political and scientific milieu.
    • Three subsequent contributions offer contemporary analyses of this classic case.

    Observation:

    • Contemporary child analysts re-examine the "Frankie" case, noting both its groundbreaking aspects and limitations.
    • The revisiting process reveals illuminating differences between historical and present-day perspectives.
    • Scholars acknowledge the case's revolutionary nature while also offering constructive criticism.

    Findings:

    • Revisiting the "Frankie" case provides valuable insights into evolving psychoanalytic thought.
    • Similarities and differences in interpretation highlight the dynamic nature of clinical understanding.
    • The original case's techniques and theories are assessed for potential updates.

    Implications:

    • Updating psychoanalytic techniques with nonlinear thinking may enhance clinical data organization.
    • Selective modernization of theoretical frameworks can address contemporary challenges in child analysis.
    • The enduring legacy of the "Frankie" case lies in its capacity to stimulate ongoing critical discourse and theoretical advancement.