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14 Cards in this Set
- Front
- Back
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Series Circuits |
Only a single pathway for current to flow |
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Voltage in a Series Circuit |
The sum of voltage lost on loads equals the total voltage supplied by the battery |
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Current in Series Circuit |
Measured anywhere in the circuit will be the same |
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Resistors / Current in Series Circuit |
Total resistance of the circuit is increased when resistors are placed. Total current leaving battery therefore decreases. |
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Parallel Circuit |
Has mulitple pathways for the current to flow ( adding more pathways lowers resistance) |
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Voltage in parallel circuit |
Voltage remains the same through each pathway of the parallel circuit |
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Current in parallel circuit |
Current spilts up between the different current pathways. |
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Resistors in parallel circuit |
Total resistance of cicuit decreases when resistor are placed parallel. The total current leaving the battery therefore increase |
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Power of Electricty |
Power = rate of change in energy Power is measured in joules per second or wats 1 J/ per sec = 1 watt (w) |
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Electrical Power |
Rate of change in electrical power Example= 25 w bulb converts 25 joules into other form. |
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Calculating Electrical Power |
Formula Power = (current) (voltage) Current= power/voltage Voltage= (power) (current) |
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Power Ratings |
Is measurement of how much electrical energy an electrical device consumes every second. |
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Calculating Energy Consumption |
Power can be defined as a rate of energy consumption. Power = to energy transformed 6 per time interval + ( P= 6/T) |
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Electrical Energy Consumption Formula |
Formula Power = energy / time Energy = (power) (time) Time= Energy/power ( need to convert min to sec = x60) |
