Electricity Flashcards

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1
Q

What is the symbol for Current?

A

I

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2
Q

What is the symbol for Potential Difference?

A

V

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3
Q

What is the symbol for Resistance?

A

R

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4
Q

What is the unit for Charge?

A

Coulombs (C)

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5
Q

What is the unit for Current?

A

Amperes/Amps (A)

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6
Q

What is the unit for Potential Difference?

A

Volts (V)

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7
Q

What is the unit for Resistance?

A

Ohms

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8
Q

What is the definition for Charge?

A

The imbalance of protons and electrons

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9
Q

What does current mean?

A

The flow of charge

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10
Q

What does potential difference mean?

A

A measure of the work done or transferred by each coulomb of charge.

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11
Q

What does resistance mean?

A

It’s providing an opposing force (trying to stop the current or slow it down)

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12
Q

What does a voltmeter do?

A

Measured potential difference

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13
Q

What does a fixed resistor do?

A

It limits current in a circuit

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14
Q

What does LED stand for?

A

Light Emitting Diode

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15
Q

2 or more cells together form a _____

A

Battery

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16
Q

What does a variable resistor do?

A

It allows the current to be varied

17
Q

What is the symbol for Charge?

A

Q