24. Electric Force & Field; Gauss' Law

Electric Field

Physics 36   The Electric Field (4 of 18)

Anderson Video - Electric Fields on the Atomic Scale

Balancing a Pendulum in Electric Field

In the following figure, a mass m is balanced such that its tether is perfectly horizontal. If the mass is m and the angle of the electric field is ?, what is the magnitude of the electric field, E?<img src="https://static.studychannel-prd.pearsonprd.tech/courses/physics/thumbnails/images/19631f0a"alt=""/>

If two equal charges are separated by some distance, they form an electric dipole. Find the electric field at the center of an electric dipole, given by the point P in the following figure, formed by a 1C and a −1C charge separated by 1 cm.<img src="https://static.studychannel-prd.pearsonprd.tech/courses/physics/thumbnails/images/250cbd92"alt=""/>

A 1.5μC charge, with a mass of 50g, is in the presence of an electric field that perfectly balances its gravity. What magnitude does the electric field need to be, and in what direction does it need to point?

Electric Field (2 of 3) Calculating the Magnitude and Direction of the Electric Field

Electric Field Above Two Charges (Triangle)

Anderson Video - Electric Field

Anderson Video - Electric Field from Two Charges

Zero Electric Field due to Two Charges

4 charges are arranged as shown in the following figure. Find the magnitude of the electric field at the center of the arrangement, indicated by the point P.<img src="https://static.studychannel-prd.pearsonprd.tech/courses/physics/thumbnails/images/876bb882"alt=""/>

Candle Flame in an Electric Field

What is an Electric Field? (Physics - Electricity)

Electric Field Strength

Anderson Video - Electric Field Example with Four Charges

Introduction to Electric Fields

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<math display=“inline”><mrow><mn>6.2</mn><mo>&#x00D7;</mo><msup><mrow><mn>10</mn></mrow><mn>6</mn></msup><mtext>&#x00A0;</mtext><mtext>N/C,</mtext><mtext>&#x00A0;</mtext><mtext>upward</mtext></mrow></math>

<math display=“inline”><mrow><mn>6.2</mn><mo>&#x00D7;</mo><msup><mrow><mn>10</mn></mrow><mn>6</mn></msup><mtext>&#x00A0;</mtext><mtext>N/C,</mtext><mtext>&#x00A0;</mtext><mtext>downward</mtext></mrow></math>

<math display=“inline”><mrow><mn>8.4</mn><mo>&#x00D7;</mo><msup><mrow><mn>10</mn></mrow><mn>5</mn></msup><mtext>&#x00A0;</mtext><mtext>N/C,</mtext><mtext>&#x00A0;</mtext><mtext>downward</mtext></mrow></math>

A <math display=“inline”><mrow><mn>1</mn><mo>.</mo><mrow><mn>2</mn><mo rspace="thickmathspace">&#x2062;</mo><mi mathvariant="normal" class="MathML-Unit">g</mi></mrow></mrow></math> plastic bead is given a charge of <math display=“inline”><mrow><mo>&#x2212;</mo><mn>14</mn><mtext>&#x00A0;</mtext><mtext>nC</mtext></mrow></math> by rubbing. What magnitude and direction of electric field is necessary to levitate the bead?

Intro to Electric Fields

Electric Field due to a Point Charge

Anderson Video - Electric Field Vectors

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