Circuits and charge Flashcards

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1
Q

Define current

A

The rate of flow of the charge

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2
Q

What is the equation Current

A

Current = charge/time

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3
Q

What is the equation for potential difference ?

A

V = ENERGY / CHARGE

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4
Q

What is the equation for electric charge

A

Q = I x t

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5
Q

What is the equation for resistance ?

A

R = V/I

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6
Q

What is current measured in ?

A

Amps

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7
Q

How many electrons make up -1c of charge ?

A

How many = Total / value of each

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8
Q

Define voltage

A

The measure of the energy difference each coulomb has between two points

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9
Q

What is energy used for ?

A

Used in a electrical circuit

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10
Q

Equation for Energy

A
Energy = power x Time 
E = P x T
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11
Q

Equation for power ?

A

W = Energy / Time

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12
Q

What is 1 kW = too ?

A

1000 W

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13
Q

What is the equation for energy transferred ?

A

J = Charge flow x potential difference

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14
Q

What is Ohms law ?

A

Ohms law states in a circuit the voltage across component is directly proportional to the current , provided temperature is constant

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15
Q

What is the equation for Ohms law

A

V = I x R

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16
Q

What is the equation for resistance in terms of Ohms law ?

A

Resistance = Voltage / current

17
Q

What is the equation for Potential difference in terms of series and parallel circuits ?

A

Potential difference = Current x resistance