A T-pad attenuator is an attenuator network consisting of three non-inductive resistive elements connected together to form a "T" configuration, (hence its name). As well as using the T-pad attenuator to reduce signal levels in a circuit with equal impedances, we can also use it for impedance matching between unequal impedances on transmission lines. Using Norton's Theorem and the voltage and resistor values from the table below, calculate the current through R6 in the circuit of figure 4.

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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).