Question

In the given circuit , assuming point a to be at zero potential, use kirchhoff's rule to determine the potential at point b.

Answer 1

Explanation:

Kirchhoff,s Junction Rule :

The algebraic sum of the current meeting at a point or at a junction in an electric circuit is always Zero.

Means The sum of current direction toward a point in circuit is equal to the sum of current directed away from the point.

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Answer 2

Explanation:

Kirchhoff's first rule—the junction rule: The sum of all currents entering a junction must equal the sum of all currents leaving the junction. Kirchhoff's second rule—the loop rule: The algebraic sum of changes in potential around any closed circuit path (loop) must be zero.