Question

Електричне поле, що складається з джерела постійної ЕРС та котушки замкнули. На що витрачається енергія джерела до і після встановлення в колі постійної сили струму?

Answer 1

Электрическое поле, которое состоит из источника постоянной ЭДС и катушки замкнули. На что расходуется энергия источника до и после установления в цепи постоянной силы тока?

В момент замыкания цепи энергия источника тратится на создание  магнитного поля  катушки, которое ПРЕПЯТСТВУЕТ возрастанию силы тока.

Когда ток установился, то энергия тратится на нагревание проводника (катушки) 

Answer 2

Electric Field and Energy Consumption in a Circuit

When an electric field is created by a source of constant electromotive force (EMF) and a closed loop circuit, energy is consumed by the source both before and after the establishment of a steady current in the circuit.

The electric field is created by the source of constant EMF, which can be a battery or any other device that maintains a potential difference across its terminals. The EMF drives the flow of electric charges in the circuit, creating an electric current. The electric field is responsible for the movement of charges and the transfer of energy.

Before the establishment of a steady current, when the circuit is first closed, the source of EMF does work to overcome the resistance in the circuit and establish the flow of charges. This work done by the source of EMF is equal to the energy consumed by the source. The energy is transferred from the source to the charges in the circuit, allowing them to move.

Once a steady current is established in the circuit, the energy consumption by the source changes. At this point, the source of EMF no longer needs to do work to overcome the resistance in the circuit, as the charges are already in motion. The energy consumed by the source is now used to maintain the flow of charges and overcome any internal resistance within the source itself. This internal resistance may include factors such as the resistance of the battery's internal components.

In summary, the energy consumed by the source of constant EMF in a circuit is used both before and after the establishment of a steady current. Before the establishment of a steady current, the energy is used to overcome the resistance in the circuit and establish the flow of charges. After the establishment of a steady current, the energy is used to maintain the flow of charges and overcome any internal resistance within the source itself.

Please note that the specific details and equations related to energy consumption in a circuit can vary depending on the specific circuit configuration and components involved. If you have a specific circuit in mind, please provide more details for a more tailored response.