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Definition of "voltage source" |
A source which essentially maintains the source voltage at a predefined value almost independent of the load conditions. In other words the terminal voltage is maintained close to the internal emf. / When a load resistance RT is connected to a voltage source ES with series resistance RS, maximum power transfer to the load occurs when RT is equal to RS. Under maximum power transfer conditions, the load resistance RT, load voltage VT, load current IT and load power PT are: RT = RS VT = ES / 2 IT = VT / RT = ES / 2RS PT = VT2 / RT = ES2 / 4RS. / circuit or device that supplies voltage to a load. |
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