Lesson 3 - Electric Field

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29 Terms

1

Lightning

Can be produced between opposite charges within a cloud, between two or more separate clouds or between the cloud and the ground  

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2

Lightning

Clouds become negatively charged, which induce positive charges on the ground 

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3

Lightning

Initiates the discharge of lightning  

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4

Field Forces

forces that act between objects even if they are not in constant

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5

Electrostatic (Coloumbic) Force

Gravitational Force

Field Forces

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6

Electric Field

Defined as the amount of electric force on a charged body exerted by external charged bodies

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7

Electric Field

Way on how charged communicate to one another

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8

charged particle

produces an electric field around it. Thus, another charged particle reacts to it by experiencing an electric force

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9

charge

produced an electric field in its surroundings, but this electric field cannot exert a net force on the charge that created it

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10
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11

Electric Field

at a point P as the electric force (Fe) acting on a positive test charge (q0) placed at that point per unit charge

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12

vector quantity

Since electric force is a vector quantity, it can already be deduced that electric field is also a____

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13

E= Fe / q0

Formula

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14

Inverse-square Law

still applicable to the electric field equation

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15

directed away

For a positive charge, the field lines should be ____ from the charge

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16

field lines

line around the charge

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17

directed towards

For a negative charge, the field lines will be _____ it

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18

Case 1: Attractive (positive charge and negative charge)

Case 2: Repulsive (positive charges)

Case 3: Repulsive (negative charged)

Drawing Electric Field Lines

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19

Field lines emanate from the positive charge and terminate to the negative charges

Field lines do not intersect at one point. Field lines only meet if the force between the charges is attractive

The density of the lines (number of lines per space), represents the strength of the field

Three Basic Rules in Drawing Electric Field Lines

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20

emanate, terminate

Field lines _____ from the positive charge and _____ to the negative charges

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21

Attractive

Field lines do not intersect at one point. Field lines only meet if the force between the charges is____  

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22

strength

The density of the lines represents the ____of the field  

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23

density of the lines

number of lines per space

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24

Electrostatic (Coloumbic) Force

calculated using the charges

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25

Gravitational Force

calculated using the mass

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26

higher

higher gravitational forces = ___ mass 

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27

Electric Field

Always existing and Only reacts when there is a charge 

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28

Electric Field

Force per unit charge

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29

Test charge

will react to it by experiencing electric force

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