In: Physics
Kirchhoff’s Junction Rule is a consequence of the law of Conservation of Electric Charge. Explain why.
Kirchhoff's junction rule - 'according to which the algebraic sum of the currents into any junction is zero.'
Law of electric charge- It is the stated that the total electric charge in an isolated system never changes. The net quantity of electric charge, the amount of positive charge minus the amount of negative charge in the universe, is always conserved.
The junction rule is based on conservation of electric charge. No charge can accumulate at a junction, so the total charge entering the junction per unit time is equal to charge leaving per unit time. Kirchhoff's first law is junction rule, according to which the algebraic sum of the currents into any junction is zero. The junction rule is based on conservation of electric charge. No charge can accumulate at a junction, so the total charge entering the junction per unit time must equal to charge leaving per unit time.
So Kirchhoff’s Junction Rule is a consequence of the law of Conservation of Electric Charge.