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  2. Series and parallel circuits - Wikipedia

    en.wikipedia.org/wiki/Series_and_parallel_circuits

    If the cells of a battery are connected in parallel, the battery voltage will be the same as the cell voltage, but the current supplied by each cell will be a fraction of the total current. For example, if a battery comprises four identical cells connected in parallel and delivers a current of 1 ampere , the current supplied by each cell will ...

  3. Equivalent circuit model for Li-ion cells - Wikipedia

    en.wikipedia.org/wiki/Equivalent_circuit_model...

    The equivalent-circuit model is used to simulate the voltage at the cell terminals when an electric current is applied to discharge or recharge it. The most common circuital representation consists of three elements in series: a variable voltage source, representing the open-circuit voltage (OCV) of the cell, a resistor representing ohmic internal resistance of the cell and a set of resistor ...

  4. Electrochemical cell - Wikipedia

    en.wikipedia.org/wiki/Electrochemical_cell

    As chemical reactions proceed in a primary cell, the battery uses up the chemicals that generate the power; when they are gone, the battery stops producing electricity. [citation needed] Circuit diagram of a primary cell showing difference in cell potential, and flow of electrons through a resistor.

  5. Series–parallel graph - Wikipedia

    en.wikipedia.org/wiki/Series–parallel_graph

    Indeed, a graph has treewidth at most 2 if and only if it has branchwidth at most 2, if and only if every biconnected component is a series–parallel graph. [4] [5] The maximal series–parallel graphs, graphs to which no additional edges can be added without destroying their series–parallel structure, are exactly the 2-trees.

  6. Node (circuits) - Wikipedia

    en.wikipedia.org/wiki/Node_(circuits)

    Each color in the circuit represents one node.. In electrical engineering, a node is any region on a circuit between two circuit elements.In circuit diagrams, connections are ideal wires with zero resistance, so a node consists of the entire section of wire between elements, not just a single point.

  7. Equivalent circuit - Wikipedia

    en.wikipedia.org/wiki/Equivalent_circuit

    The electrical behavior of a Lithium-ion battery cell is often approximated by an equivalent circuit model. Such a model consists of a voltage generator driven by the state of charge , representing the open-circuit voltage of the cell, a resistor representing the internal resistance of the cell, and some RC parallels to simulate the dynamic ...

  8. Battery pack - Wikipedia

    en.wikipedia.org/wiki/Battery_pack

    A battery pack is a set of any number of (preferably) identical batteries or individual battery cells. [1] [2] They may be configured in a series, parallel or a mixture of both to deliver the desired voltage and current. The term battery pack is often used in reference to cordless tools, radio-controlled hobby toys, and battery electric vehicles.

  9. Bridge circuit - Wikipedia

    en.wikipedia.org/wiki/Bridge_circuit

    A bridge circuit is a topology of electrical circuitry in which two circuit branches (usually in parallel with each other) are "bridged" by a third branch connected between the first two branches at some intermediate point along them. The bridge was originally developed for laboratory measurement purposes and one of the intermediate bridging ...

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