Assume that the currents I1, I2, and I are in the directions indicated by the arrows in the figure redrawn below. (Enter your answers to at least four significant figures.) 12.0 V R₁ or Solving for I₁ gives a Applying Kirchhoff's junction rule at a gives 13 = 1₁ + 1₂. [1] Using Kirchhoff's loop rule starting at point a and going clockwise around the leftmost loop yields 3.00 V 18.0 V Im R3 -3.00 V-R₂13-R₁1₁ + 12.0 V = 0. 0 0 1₁ = The correct answer is not zero. V R₁ v) - (R²) 13, X 1₁ = The correct answer is not zero. A A)-(0 The correct answer is not zero. 0.)13. [2] X

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Nodal Analysis

In the analysis of any electric circuit, nodal analysis is the method of determining the potential difference or voltage between different nodes in an electric circuit. A node is a point where two or more branches connect each other. In the nodal analysis, the voltages are determined in the terms of branch currents. The nodal analysis is also known as the node voltage method or branch current method. The nodal analysis method is one of the several applications of Kirchhoff's Current Law (KCL).