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Electricity intro
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Slide 1

Electricity

Electricity

Slide 2

Applications of Electrostatics

Applications of Electrostatics

Slide 3

Electric Charge

Electric Charge

Measured in COULOMBS

Six million trillion electrons is about - 1 C.

Six million trillion protons is about + 1 C.

Slide 4

Electric Potential Energy

Electric Potential Energy

Slide 5

Electric Potential Energy

Electric Potential Energy

This spring has more SPE when it is compressed

Slide 6

Electric Potential Energy

Electric Potential Energy

This spring has more SPE when it is compressed

Likewise, these charges will have more potential energy when they are pushed closer

Slide 7

Electric Potential Energy

Electric Potential Energy

PE equals the amount of work done to move a charge from one place to another.

Slide 8

Electric Potential Energy

Slide 9

Electric Potential Energy

Electric Potential Energy

Which will have the larger electric potential energy?

Slide 10

Electric Potential Energy

Electric Potential Energy

A – because it requires work to move it away from the negative charge.

Slide 11

Electric Potential (volts)

Electric Potential (volts)

EP = work/charge

Slide 12

Electric Potential (volts)

Electric Potential (volts)

Example: 1000 joules of work is done to move the charge q from far away to the place indicated. If q = 10 C, what is the electric potential at the new location?

Slide 13

Electric Potential (volts)

Electric Potential (volts)

Example: 1000 joules of work is done to move the charge q from far away to the place indicated. If q = 10 C, what is the electric potential at the new location?

Voltage = work/charge

V = 1000 J/10C = 100 Volts

Slide 14

Electric Potential (volts)

Electric Potential (volts)

What if the charge in the previous problem were now 100 C instead of 10? What would happen to the EP?

Slide 15

Electric Potential (volts)

Electric Potential (volts)

What if the charge in the previous problem were now 100 C instead of 10? What would happen to the EP?

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