ELectric circuits Flashcards

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1
Q

Define current

A

The rate of flow of charge.

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2
Q

How do you calculate total resistance in series?

A

RT = R1 + R2 + R3

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3
Q

How do you calculate total resistance in parallel?

A

1/RT = 1/R1 + 1/R2 + 1/R3

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4
Q

What does a I-V graph look like for ohmic conductors?

A

Straight line from origin

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5
Q

What does a I-V graph look like for filament bulbs?

A

‘S’ shape

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6
Q

What does a I-V graph look like for thermistors?

A

Flipped ‘S’ curve shape - exponential

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7
Q

What does a I-V graph look like for diodes?

A

Reverse ‘L’ shape

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8
Q

What does a I-V graph look like for resistors?

A

Straight line through the origin

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9
Q

Define electromotive force (e.m.f)?

A

The amount of energy supplied by a source to 1C of charge.

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