While applying Kirchhoff's first law, currents **arriving** at the junction are considered:
AZero
BPositive
CNegative
DImaginary
Answer & Solution
Correct answer: B. Positive
Sign convention: arriving currents are positive; leaving currents are negative. This makes $\sum I = 0$ at the junction enforce KCL.
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