Problem 1-14: Current of A Voltage Source

Find the current passing through the voltage source:
a)
A voltage source in series with a current source
b)
A voltage source in series with a current source and other elements


Solution
a) The voltage source is in series with the current source. Since by definition a current source keeps the current passing through itself constant and the voltage source is in series with the current source, it should have the same current  10 A.


A voltage source in series with a current source


b) The same scenario is happening here and the voltage source has the same current as the current source  5A.

A voltage source in series with a current source and other elements

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10 Comments

    1. It has effect on the current of the resistor (=5A+3A). The current of the voltage source is the current of the current source. By definition, a current source keeps the current of the line constant. Any component which is in series with a current source has the same current passing through itself.

  1. Dear Sir, I have a doubt ..
    1. What would be the maximum current that a voltage source can deliver?
    Say for eg. what would be the max. current of 230v source
    2. Also how that is decided (i mean on what factor)

    Also like this i have some basic questions in electrical engg.. where i cud i post them if u have time & willigness to reply?

    Thanks,
    Pasupathy K.R

  2. in the given circuit is the both the sources are supplying power ? if so what happend if the terminals of voltage source is reversed

  3. Hello sir need help in a similar problem

    given circuit

    __________ 2A 2 ohm
    |Given |-------o ----------------- ( --> )----------^^^^^--------|
    | Network | +V ____ 5V
    | | - --
    |_________ | ------ o--------------------------------------------------|

    what would be value of V

    If we argue that the current due to current source is constant 2A then i get 9V as the answer ...is this correct.

  4. Hello sir

    need help in a similar problem

    given circuit

    __________ 2A 2 ohm
    |Given |-------o ----------------- ( --> )----------^^^^^--------|
    | Network | +V ____ 5V
    | | - --
    |_________ | ------ o--------------------------------------------------|

    what would be value of V

    If we argue that the current due to current source is constant 2A then i get 9V as the answer ...is this correct.

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