Home › AP Intermediate 2nd Year › Current Electricity › Kirchhoff's Current Law at a junction is based o…
Kirchhoff's Current Law at a junction is based on conservation of which physical quantity?
AEnergy
BCharge
CMomentum
DPotential difference
Answer & Solution
Correct answer: B. Charge
Kirchhoff's Current Law follows from conservation of charge. Since charge cannot accumulate at an ideal junction in steady state, total current entering the node equals total current leaving it.
Related questions
For a battery of emf ε and internal resistance r driving current I through external resistA galvanometer of resistance G is converted into a voltmeter reading full-scale voltage V A galvanometer of resistance G shows full-scale deflection at current I_g. To convert it iThe relation between current density j, drift velocity v_d, number density n and charge e A wire has a resistance R. It is stretched uniformly so that its length becomes 2L. The neKirchhoff current law at a junction is a statement ofTwo cells of emf ε and internal resistance r each are connected in parallel. The equivalenA potentiometer of length L is used to compare emfs. If the balance lengths for cells of e