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10 Cards in this Set
- Front
- Back
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EMF/voltage definition? unit? symbol?
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def: electrical pressure that comes from a source like a battery
unit: volts (V) symbol: E |
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Resistance definition? unit? symbol?
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def: obstacle in circuit that impedes current
unit: ohms (up-side-down horseshoe) symbol: R |
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Current definition? unit? symbol?
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def: rate of electrons flowing through circuit
unit: amperes (A) symbol: I |
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Power definition? unit? symbol?
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def: total electrical pressure dissipated by the resistor
unit: Watts (W) symbol: P |
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Formula relating voltage to current and resistance?
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E = I / R
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Formula relating power to current and voltage?
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P = E * I
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Conductance definition? unit? symbol?
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def: resistance of parallel resisters; reciprocal of resistance
unit: siemens (S) symbol: G |
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Formula relating power to current and resistance?
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P = I^2 * R
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Formula relating power to voltage and resistance?
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P = E^2 / R
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Formula relating conductance to resistance?
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G = 1 / R
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