Kirchoff's Law With Battery Only

In summary, Kirchoff's law would still apply and the equation would not be equal to zero due to the presence of the voltage source's internal resistance.
  • #1
teroenza
195
5
Hello,
If one had a resistance free wire and a battery with no internal resistance, how would Kirchoff's law be applied if the terminals of the battery were connected by the wire? Is this even an appropriate question? I know/believe current would be at infinity. I am still trying to fully understand voltage, but because it is a conservative electric field, wouldn't the equation still be equal to zero?

Thank you
 
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  • #2
teroenza said:
Hello,
If one had a resistance free wire and a battery with no internal resistance, how would Kirchoff's law be applied if the terminals of the battery were connected by the wire? Is this even an appropriate question? I know/believe current would be at infinity. I am still trying to fully understand voltage, but because it is a conservative electric field, wouldn't the equation still be equal to zero?

Thank you

It is not an appropriate question. Anything that generates infinite current is non-physical.

Any real voltage source has a finite internal resistance. So if you connect it to a superconducting wire, the current is determined by the finite internal resistance of the voltage source.
 

1. What is Kirchoff's Law with Battery Only?

Kirchoff's Law with Battery Only, also known as Kirchoff's Voltage Law (KVL), is a fundamental principle in electrical circuits that states that the sum of the voltages around a closed loop in a circuit must equal zero.

2. How does Kirchoff's Law apply to circuits with batteries?

In circuits with batteries, Kirchoff's Law can be used to determine the distribution of voltage between different components. The voltage of the battery is divided among the different components in the circuit according to their individual resistances.

3. Can Kirchoff's Law be applied to both series and parallel circuits with batteries?

Yes, Kirchoff's Law can be applied to both series and parallel circuits with batteries. In series circuits, the total voltage of the battery is equal to the sum of the voltage drops across each component. In parallel circuits, the total voltage of the battery is equal to the voltage across each branch of the circuit.

4. What are the limitations of Kirchoff's Law with Battery Only?

Kirchoff's Law with Battery Only assumes that the battery has negligible internal resistance and that the circuit is in a steady state. It also assumes that there are no magnetic fields present in the circuit. These assumptions may not hold true in all real-world scenarios.

5. How is Kirchoff's Law used in practical applications?

Kirchoff's Law is commonly used in circuit analysis and design to calculate voltage drops, current flows, and power dissipation in a circuit. It is also used in troubleshooting and diagnosing faults in electrical circuits.

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