Electricity and magnetism Flashcards by Gia Warrier | Brainscape

Q

Current(A) in terms of charge

A

Charge(C) / Time(s)

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Q

Voltage(V) in terms of charge

A

Energy transferred(J) / Charge(C)

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Q

Voltage(V) in terms of resistancce

A

Current(A) * Resistance(Ω)

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Q

Power(W) in terms of volts

A

Current(A) * Voltage(V)

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Q

Power(W) in terms of resistance

A

Current(A) * Resistance^2(Ω)

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Q

Energy transferred(J) in terms of current

A

Current(A) * Voltage(V) * Time(s)

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Q

Energy transferred(J) in terms of power

A

Power(W) * Time(s)

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Q

Resistance in series

A

Rₜₒₜₐₗ = R₁ + R₂

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Q

Resistance in parallel

A

1/Rₜₒₜₐₗ = 1/R₁ + 1/R₂ + …

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Q

Resistance(Ω) in terms of resistivity

A

[Resistivity(Ωm) * Length(m)] / Area(m^2)

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Q

Ratio of turns and voltage in tranformers

A

Vₛ /Vₚ = Nₛ /Nₚ

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Q

Ratio of volts and current in tranformers

A

Vₛ /Vₚ = Iₚ /Iₛ

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