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10 cards from this deck
Rate at which energy is transformed or work is done
Watt (W), where 1 W=1 J⋅s−11 \text{ W} = 1 \text{ J} \cdot \text{s}^{-1}1 W=1 J⋅s−1
P=EtP = \frac{E}{t}P=tE (power = energy / time)
P=VIP = VIP=VI (power = voltage × current)
P=I2RP = I^2RP=I2R
P=V2RP = \frac{V^2}{R}P=RV2
Power increases with the square of current
Parallel circuits use more power (same components & voltage)
Independent operation, full voltage, reliability
Parallel has lower equivalent resistance than series
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