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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

State Kirchhoff’s first (current) law. - Physics

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प्रश्न

State Kirchhoff’s first (current) law.

टीपा लिहा
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उत्तर

The algebraic sum of the currents at a junction is zero in an electrical network.

i.e., `sum_("i" = 1)^"n" "I"_"i" = 0`

where Ii is the current in the ith conductor at a junction having n conductors.   

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पाठ 9: Current Electricity - Very Short Answer

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संबंधित प्रश्‍न

Kirchhoff’s first law, i.e., ΣI = 0 at a junction, deals with the conservation of ______.


Are Kirchhoff’s laws applicable to both AC and DC currents?


Two cells of emf 1.5 Volt and 2 Volt having respective internal resistances of 1 Ω and 2 Ω are connected in parallel so as to send current in the same direction through an external resistance of 5 Ω. Find the current through the external resistance.


Kirchhoff’s second law (voltage law) is based on ______ 


What is the basis of Kirchhoff’s current law and voltage law?


Are Kirchhoff’s laws applicable to both AC and DC circuits?


A carrier wave of peak voltage 16 V is used to transmit a signal. If the modulation index is 75%, the peak voltage of the modulating signal is ______.


Kirchhoff's junction rule is a reflection of ____________.


The magnitude and direction of the current in the circuit shown will be ______

 


In the given circuit, the emf 'E' of the cell is ______.


The potential difference (VA - VB) between the points A and B in the given figure is ______.


What determines the conventional direction of the product of current and resistance while applying the Kirchhoff's law?


Which of the following is the dimensional formula for electric polarisation?


In the following electrical network, the value of 'I' is


Kirchhoff's law of radiation proves that ______ 


Using Kirchhoff's law, find the current flowing through the given circuit.

 


Two cells of emf 4 V and 2 V having a respective internal resistance of 1 Ω and 2 Ω are connected in parallel, so as to send current in the same direction through an external resistance of 5 Ω. Find the current through the external resistance.


In the following network, the current flowing through 15 Ω resistance is ______.


State Kirchhoff's voltage law.


State sign convention of Kirchhoff's voltage law.


State Kirchhoff's current law sign conventions


The figure shows part of an electric circuit. The potential difference VA - VB is ______. 


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