Circuits Equations Flashcards by Leah Warren

Q

Current

A

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Q

Resistance

A

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Q

Ohm’s Law (Voltage Drop)

A

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Q

Power of Resistor

A

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Q

What does this symbol in a circuit represent?

A

A resistor

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Q

Resistors in Series: Total Voltage Drop

A

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Q

Resistors in Parallel: Total Voltage Drop

A

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Q

Resistors in Series: Total Resistance

A

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Q

Resistors in Parallel: Total Resistance

A

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Q

Capacitance

formula

A

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Q

Capacitance

units

A

Farad

coulomb / volt

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Q

What do capacitors do?

A

They store charge (in an electric field)

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Q

What do batteries do?

A

Store charge (in chemical form)

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Q

Capacitance (incl. area & distance)

formula

A

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Q

Capacitance tells us…

A

how good a given capacitor is at storing charge

large capacitance = stores a lot of charge

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Q

Potential energy of a Capacitor

A

Q

Uniform Electric Field created by capacitor

A

Q

What does this symbol in a circuit represent

A

a capacitor

Q

capacitance

capacitors in series

A

Q

capacitance

capacitors in parallel

A

Q

What does this symbol represent in a circuit?

A

batteries!

look for the lines of differing lengths