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Adam Zalcman
Adam Zalcman
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In an electric circuit with a resistor of resistance R there is energy conversion to other forms. If there is just one resistor then the voltage drop over the resistor is always equal to the battery voltage drop. But does this mean that the change in potential energy of electrons is totaly converted in the resistor or does some conversion also happen at the pole of the battery where electrons sink? Of course I am thinking of a perfect conducting wires. So if you have 1 A and 2 ohms you get that the power consumption is 2 W. Does this mean that the power consumed is 2 W in a resistor?And And how is that possible? SholdntShouldn't the battery itself take some of this power where the electrons are being absorbed?

In an electric circuit with a resistor of resistance R there is energy conversion to other forms. If there is just one resistor then the voltage drop over the resistor is always equal to the battery voltage drop. But does this mean that the change in potential energy of electrons is totaly converted in the resistor or does some conversion also happen at the pole of the battery where electrons sink? Of course I am thinking of a perfect conducting wires. So if you have 1 A and 2 ohms you get that the power consumption is 2 W. Does this mean that the power consumed is 2 W in a resistor?And how is that possible? Sholdnt the battery itself take some of this power where the electrons are being absorbed?

In an electric circuit with a resistor of resistance R there is energy conversion to other forms. If there is just one resistor then the voltage drop over the resistor is always equal to the battery voltage drop. But does this mean that the change in potential energy of electrons is totaly converted in the resistor or does some conversion also happen at the pole of the battery where electrons sink? I am thinking of perfect conducting wires. So if you have 1 A and 2 ohms you get that the power consumption is 2 W. Does this mean that the power consumed is 2 W in a resistor? And how is that possible? Shouldn't the battery itself take some of this power where the electrons are being absorbed?

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Qmechanic ♦
Qmechanic ♦
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Žarko Tomičić
Žarko Tomičić
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Power consumption of an electric circuit

In an electric circuit with a resistor of resistance R there is energy conversion to other forms. If there is just one resistor then the voltage drop over the resistor is always equal to the battery voltage drop. But does this mean that the change in potential energy of electrons is totaly converted in the resistor or does some conversion also happen at the pole of the battery where electrons sink? Of course I am thinking of a perfect conducting wires. So if you have 1 A and 2 ohms you get that the power consumption is 2 W. Does this mean that the power consumed is 2 W in a resistor?And how is that possible? Sholdnt the battery itself take some of this power where the electrons are being absorbed?