Electric Field Flashcards

1
Q

What does E stand for

A

Electric field

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2
Q

Two opposite charged objects

A

attract

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3
Q

Charge Per Length

A

Q/L

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4
Q

Ξ» for ring

A

Q/(2𝝅r)

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5
Q

flux

A

quantity of something passing through a given area

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6
Q

planar symmetry

A

system only varies with distance from a plane

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7
Q

𝜎

A

charge per unit area (surface charge density)

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8
Q

𝜌

A

charge per unit volume (volume charge density)

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9
Q

Enet

A

Sum of Es

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10
Q

Q or q

A

Charge

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11
Q

Ξ»=?

A

Q/L

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12
Q

POI

A

Point of Interest

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13
Q

Units for 𝜎

A

coulombs per square meter (C/m^2)

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14
Q

Units for 𝜌

A

coulombs per cubic meter (C/m^3)

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15
Q

What is r?

A

radius

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16
Q

What is D?

A

Distance to POI

17
Q

electrons to coulombs conversion

A

6.242 x 10^18 e/C

18
Q

units of Ξ»

A

coulombs/meter

19
Q

When verticle components cancel

20
Q

Two of the same charges

21
Q

What is capital Q?

A

The total charge

22
Q

What’s the hypotenuse side length in a 3-4-5 right triangle?

23
Q

derivates

A

used to find small piece of something

24
Q

Which shape involves Ξ» in its equation?

A

Ring and line

25
Which shape involves 𝜎 in its equation?
Plate
26
When will electric flux through an electric field be at its maximum?
When the angle with the normal is 0 degrees.
27
When will electric flux throught an electric field be zero?
When the angle with the normal is 90 degrees.
28
Q / L
charge per unit length
29
What kind of point is used to set up an intergral?
An "ordinary point" (not a special point, like y=0)