Voltage source connected in parallel?

Question

I have 2 voltage sources (5V each)connected in parallel connected to a load (10K ohms).

I1= v2/10k = 5mA?

I2=5mA?

v1 does not give any effect on the total current in the circuit? Since there is no complete circuit for the V1 cause current will flow to v2?

Tks for any answer...

.......____________

...._|_....I2->_|_ ........ I

... ---............ ---.......... I <- I1

......| v1..........| v2......_I_

......| ..............|......... |__|Load

......|______ |______|

TCM

Answer 1

When two voltage sources with the same characteristics are connected in parallel they share the current consumption of the circuit. In this case, the sources will provide 2.5 mA each. The total current in the load remains 5 mA.

Hope it helps...

Answer 2

If the voltage sources are identical and set to the identical voltage, then each will deliver 2.5 ma to the resistor for the total of 5ma as required by ohms law.

In practice, one supply will always be a millivolt (or more) higher than the other, so that one will supply the 5ma and the other zero. Or it will supply 4ma and the other 1. Or the higher supply will supply 100 ma and the lower supply will absorb 95 of that and the resistor 5ma.

or something like that. If the supplies are not even similar, then lots of strange things can happen, like one of the supplies getting overloaded driving the other one.

Bottom line, connecting supplies in parallel, you have to monitor each one.