M3.2 Flashcards

1
Q

Does a force field exist around every charged body?

A

Yes

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2
Q

What happens when a electron enters a metallic body?

A

Anther electron will be pushed out the other end due to the metallic body being riddled with electrons

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3
Q

What is electron flow?

A

Negative to positive

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4
Q

What is conventional flow?

A

Positive to negative

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5
Q

Does cross-sectional area affect the amount of electron flows per second?

A

No if the current stays the same

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6
Q

What is current density (j)?

A

The current per mm cross section-area

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7
Q

What happens to a conductor when more current is passed through?

A

The conductor will heat up

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8
Q

What are free electrons?

A

The electrons that get transferred from one material to the other

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9
Q

How does a wire go to white heat?

A

When the current is being passed through a small cross-sectional area (the electron-ions collide more often)

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