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Science > Voltage, current and resistance > Flashcards

Voltage, current and resistance Flashcards

(17 cards)

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1
Q

What is current?

A

The flow of electric charge (electrons) around a circuit.

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2
Q

What is current measured in?

A

Amps (A)

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3
Q

What is current measured with?

A

An ammeter (in series circuit)

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4
Q

What is voltage?

A

The push that moves the current around the circuit.

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5
Q

What is voltage measured in?

A

Volts (V)

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6
Q

What is voltage measured with?

A

A voltmeter (put in parallel circuit)

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7
Q

What is resistance?

A

How much a component resists the flow of current.

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8
Q

What is resistance measured in?

A

Ohms (Ω)

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9
Q

What is the formula for voltage?

A

V= I X R (voltage = current x resistance)

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10
Q

If there is more voltage, what happens to the current?

A

More voltage = more current (if resistance stays the same)

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11
Q

If there is more resistance, what happens to the current?

A

More resistance = less current (if voltage stays the same)

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12
Q

If there is less resistance, what happens to current?

A

Less resistance = more current

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13
Q

Current -

A

Flow

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14
Q

Voltage -

A

Push

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15
Q

How many paths are in a series circuit?

A

One path

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16
Q

Resistance -

17
Q

How many paths are in a parallel circuit?

Science (8 decks)

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