Which one of the following is a statement of Kirchhoffs current law? A. The current through a resistance is proportional to the value of resistance and the IR drop across it B. The total current in a parallel circuit is less than the value of the smallest current C. The algebraic sum of currents in a loop is equal to zero D. The algebraic sum of currents entering and leaving a point is equal to zero E. None of the above

The correct answer is: D. The algebraic sum of currents entering and leaving a point is equal to zero.

Kirchhoff’s current law (KCL) states that the algebraic sum of currents entering and leaving a node (a point where two or more conductors meet) is zero. This means that the total current entering a

Option A is incorrect because it is a statement of Ohm’s law, not Kirchhoff’s current law. Ohm’s law states that the current through a resistance is proportional to the value of resistance and the voltage drop across it.

Option B is incorrect because it is not always true that the total current in a parallel circuit is less than the value of the smallest current. In fact, the total current in a parallel circuit is always equal to the sum of the currents in each branch of the circuit.

Option C is incorrect because it is a statement of Kirchhoff’s voltage law, not Kirchhoff’s current law. Kirchhoff’s voltage law states that the algebraic sum of the voltage drops around a loop is equal to zero.

Option E is incorrect because it is not one of the statements of Kirchhoff’s current law.