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Current Electricity — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsCurrent Electricity2 Marks
Question
Write Kirchhoff's rules for electric circuit.
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Answer

First law (junction rule) : Algebraic sum of all the currents meeting at a junction in any closed circuit is zero. which means $\Sigma I =0$
Second law (loop rule): According to this law, the algebraic sum of the products of currents and resistances of any closed loop of any electric circuit is equal to the algebraic sum of electromotive forces working in that loop.
i.e.,$\Sigma E =\Sigma V =\Sigma IR$

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