Wednesday 26 August 2015

electric circuits - Electricity takes the path of least resistance?



Electricity takes the path of least resistance!



Is this statement correct?


If so, why is it the case? If there are two paths available, and one, for example, has a resistor, why would the current run through the other path only, and not both?




Answer



It's not true. To see this, you can try an experiment with some batteries and light bulbs. Hook up two bulbs of different wattages (that is, with different resistances) in parallel with a single battery:


 ------------------------------------------
| | |
Battery Bulb 1 Bulb 2
| | |
------------------------------------------

Both bulbs will light up, although with different brightnesses. That is, current is flowing through the one with more resistance as well as through the one with less resistance.


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