Current flowing path

[Abdul Samad]

Hy Guys i had bit confusion about electricity.
It is said that current always chooses a easy path.
But in house wiring why current flows through heater if it has such high resistance while current also has other path to flow like through bulbs or fans or other low resistance devices.

[DragonTamer1]

Because the of the amount of current available. The current always does take the easiest path, but any given path will only allow so much current to flow through it. There is always going to be more current available than any single device can allow to pass through itself safely so other devices will always have more to work with.

 

As an example, a heater may pull 10 amps from the wall while a light will only pull 4 amps. There are hundreds of amps available for the circuits but because of Ohms law they will not pull more than what they are rated for.

[Thunderpup]

Also in home applications wiring isn't typically done in a loop, or as a long chain of all the devises.

 

instead there are multiple wires coming from the box providing individual power to certain sections of the home's wiring.

furthermore high demand units, such as the water heater or stove, are supposed to have their own dedicated wiring and circuit breaker. so their operation does not affect the power needs of other areas. 

[Canada EH]

Electron Flow is neg to pos then there is Conventional Flow pos to neg.

 

House amps is governed by the breaker in the panel.

 

Like water, electrons do take the least resistance. But if the heater wasnt there is an open circuit = no flow.

But when you plug the heater in or turn it on, there is the path for it to flow and it will do it, just like water flowing.

Lightning takes the least resistance too.

 

Pull too many amps and the breaker trips.

 

That electricity is just converting electricity into heat.