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Science > Electricity and Magnetism > Flashcards

Electricity and Magnetism Flashcards

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Biology 101 flashcards
1
Q

—⛒—

A

Bulb

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2
Q

—I I—

A

Cell

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3
Q

—Ⓐ—

A

Ammeter

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4
Q

—▭—

A

Resistor

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5
Q

—| I-| I—

A

Battery

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6
Q

—O—O—

A

Closed Switch

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7
Q

—Ⓥ—

A

Voltmeter

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8
Q

What is Current

A

How much electric charge flows through a circuit

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9
Q

What is Voltage

A

The force that pushes the electrons round the circuit

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10
Q

Potential Difference

A

The voltage between 2 different parts of a circuit

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11
Q

What is Resistance

A

The force acting against the current

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12
Q

What is current measured in

A

Amps (A)

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13
Q

What are the 3 things that affect resistance

A

Length, diameter and material of the wire

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14
Q

Formula for Resistance

A

Resistance = Voltage/Current

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15
Q

What is resistance measured in

A

Ohms (Ω)

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16
Q

What is voltage measured in

A

Volts (V)

17
Q

Formula for voltage

A

Resistance x Current

18
Q

Formula for current

A

Voltage/Resistance

19
Q

If the voltage of a circuit is 10 V and the current is 0.5 A what is the resistance?

A

The resistance is 20 Ω

20
Q

What is the current like in a series circuit

A

It is always the same

21
Q

What is the current like in a parallel circuit

A

It is divided between branches of the circuit

22
Q

Which type of circuit doesn’t need double plugging

A

Series Circuits dont need double plugging

23
Q

Which type of circuit needs double plugging

A

Parallel Circuits require double plugging

24
Q

If the resistance is 6 Ω and the voltage is 30 V what is the current

A

The current is 5 A

25
Q

If the resistance is 7 Ω and the current is 14 A what is the voltage

A

The voltage is 98 V

26
Q

If the voltage is 12 V and the current is 6 A what is the resistance

A

The voltage is 2 Ω

27
Q

On a formula triangle where is the current

A

The current is on the bottom

28
Q

On a formula triangle where is the voltage

A

The voltage is on the top

29
Q

On a formula triangle where is the resistance

A

The resistance is on the bottom

Science (22 decks)

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