P5 eletric circuits Flashcards

1
Q

how does a material become charged?

A

by gaining or losing electrons

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2
Q

what will 2 objects carrying the same charge do when they’re brought close to each other

A

will repel

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3
Q

what is an electric field?

A

region of space around a charged object in which another charged object will experience an electrostatic force

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4
Q

what is electric current?

A

rate of flow of charge

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5
Q

what unit is charge measured in

A

coulombs (C)

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6
Q

what unit is current measured in?

A

amperes (A)

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7
Q

what is the same at all points when charge flows through a closed loop?

A

current

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8
Q

what must there be in a closed circuit in order for CHARGE to flow?

A

source of potential difference

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9
Q

name a source of potential difference

A

battery or cell

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10
Q

what 2 factors does current depend on?

A

resistance and p.d

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11
Q

what is an ohmic conductor?

A

conductor where current is directly proportional to the voltage

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