current and charge Flashcards

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1
Q

what is the elemnatry charge

A

1.6x10^-19

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2
Q

what is the relative charges of proton and electron

A

proton is +1e
electron is -1e

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3
Q

2 reasons why current may be larger

A

greater number of electrons moving past a given point each second

same number of electrons moving faster through the metal

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4
Q

can positive ions move

A

no but can vibrate

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5
Q

what can structure of metal be seen as

A

crystal like structure or lattice of positive ions surrounded by number of free electrons

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6
Q

what is an electrolyte

A

liquid that can conduct electric current

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7
Q

what kind of solution is electrolyte

A

ionic solution

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8
Q

which is the negative electrode and which is positive electrode

anode and cathodes

A

anode is positive elctrode
cathode is negative electrode

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9
Q

define ocnventional current

A

a model used to describe the movement of charge in a circuit from

+ to -

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10
Q

define electron flow

A

movement of electrons from - to +

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