Current and Charge Flashcards

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1
Q

Current

A

Rate of flow of charge

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2
Q

Current equation

A

I =Q/t

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3
Q

Potential Difference

A

Work done per coulomb of charge that passes between two points

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4
Q

Energy electricity equation

A

Energy = Current x Voltage x time

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5
Q

Resistance

A

The ratio of p.d applied across it to the current passing through it

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6
Q

Drift Velocity equation

A

I = nxAxVxQ

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7
Q

Resistance equation

A

V=IR

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8
Q

Resistivity equation

A

Resistance = resitivity x lenght / area

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9
Q

Resistivity

A

numerically equal to the resistance of a sample of the material of unit length and cross-sectional area

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10
Q

power energy equation

A

P = energy / time

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11
Q

power electricity equation

A

P = IV

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12
Q

Power resistance equation

A

P = v^2 / R

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