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AP Physics 2 Videos 59 videos

AP Physics 2: 1.5 Systems Interactions and Changes
4 Views

AP Physics 1.5 Systems Interactions and Changes. Which of the following statements is true?

AP Physics 2: 2.1 Fields in Space
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AP Physics 2: 2.1 Fields in Space. What is the magnitude and direction of the magnetic force experienced by side 2?

AP Physics 2: 2.2 Object Interaction and Forces
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AP Physics 2: 2.2 Object Interaction and Forces. If the distance between the ball and the point charges is doubled, what is the new electric force...

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AP Physics 2: 1.4 Fields in Space 172 Views


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Description:

AP Physics 2: Fields in Space Drill 1, Problem 4. What is the electric field magnitude at a distance 3X away from the center of the sphere?

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Transcript

00:00

Thank you we sneak and here's your shmoop du jour

00:05

brought to you by electric fields Our bodies generate electric

00:08

fields constantly even when we sleep but we still can't

00:12

shoot lightning bolts out of our fingers aren't the magnitude

00:15

of an electric field caused by a spiritually charged object

00:19

is e at a distance x away from the centre

00:22

of the sphere what's the electric field magnitude at a

00:26

distance three x away from the centre of the sphere

00:29

and hear the potential answer for me Okay well there's

00:33

a relationship between electric fields and distance The intensity of

00:39

an electric field at a point in space is proportional

00:42

to the inverse square of the distance From the point

00:45

to the center of the electric field source say we've

00:50

gotten electric field going and we put our cat at

00:53

a distance x away from the source The intensity of

00:56

the electric field he experiences is expressed as one over

01:00

x squared if we then move mr whiskers so he's

01:04

twice the distance away from the source thie intensity he

01:08

experiences from the field is now one over to next

01:12

square which means that at twice the distance the intensity

01:16

is one quarter the strength on at three times the

01:19

distance intensity would be one ninth is strong So in

01:24

this question the correct answer is a Oh and don't

01:27

worry about our cat In this scenario cats give off

01:30

their own electric fields Plus mr whiskers is kind of 00:01:33.399 --> [endTime] a jerk who never wants to cuddle

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