Jumper cable amp rating

[confused shoes]

Maybe the term was coined from early training on basic electricity like how to connect a light bulb of a flashlight using 2pcs size D batteries in series. Even if you put the starter (load) to the battery (source) it will still be in parallel.

Thevenin's Theorem states:

Any linear electrical network with voltage and current sources and resistances can be replaced at terminals A-B by an equivalent voltage source Vth "in series connection" with an equivalent resistance Rth.

[dr. d]

Thevenin's Theorem states:

Any linear electrical network with voltage and current sources and resistances can be replaced at terminals A-B by an equivalent voltage source Vth "in series connection" with an equivalent resistance Rth.

i think it means, you connect the other car's battery in series with the starter of the car with dead battery, and, necessarily, in parallel with the dead battery.

[confused shoes]

i think it means, you connect the other car's battery in series with the starter of the car with dead battery, and, necessarily, in parallel with the dead battery.

Correct dr.d.
In this case, the dead battery is already a load (no longer a source) and is receiving current from the live battery.

[12vdc]

Thevenin's Theorem states:

Any linear electrical network with voltage and current sources and resistances can be replaced at terminals A-B by an equivalent voltage source Vth "in series connection" with an equivalent resistance Rth.

That is true when you consider the wires as part of the resistance.

But Kirchhoff's law states " in parallel circuit the total current is the sum of the currents through the individual components"

[Retz]

Kung ang dead battery ay considered na load edi magiging simple series circuit yan. But could we consider the dead battery as a load? Baterya or source supple un eh mahina lang nga voltage.

[confused shoes]

Kung ang dead battery ay considered na load edi magiging simple series circuit yan. But could we consider the dead battery as a load? Baterya or source supple un eh mahina lang nga voltage.

We could not consider the dead/low battery as a source kasi current is flowing into it. Saka sa set-up na jump-start, physically naroon lang yung dead/low battery but electrically, it is not functioning as a battery but another resistor or load.

BTT: I think yung mga commercial jumper ratings are good enough. Ang importante, maganda maganda ang quality ng cable at maganda pagka crimp ng clamp.

[Retz]

^

Granting na considered as resistive load ang dead battery, edi tama nga mga mekaniko daig pa nila ang ee or ece graduate.

[kinyo]

After learning Thevenin's Theorem ... they also teach Norton's Theorem which states

Any linear electrical network with voltage and current sources and only resistances can be replaced at terminals A-B by an equivalent current source Ino in parallel connection with an equivalent resistance Rno.

[confused shoes]

After learning Thevenin's Theorem ... they also teach Norton's Theorem which states

Any linear electrical network with voltage and current sources and only resistances can be replaced at terminals A-B by an equivalent current source Ino in parallel connection with an equivalent resistance Rno.

Correct because the two current sources are called "source" or "parallel sources".