Write the mesh current and node voltage equations by inspection (directly) for the circuit in the fig. below. The nodes are marked 1, 2, 3 and 4. The meshes are marked I, II, III and IV Assume clockwise direction for all the mesh currents. 2 Re II R R2 3 e R4 R IV III R3 Rs

a) calculate the resistance R12345 between points A and B when no voltage source is connected - calculate the resistance R34 between resistors R3 and R4: - calculate resistance R345 between resistors R5 and R34: calculate resistance R2345 between resistors R5 and R345 b) calculate the current IR5 through R5 so that the voltage source is connected. - calculate the current from the source:- calculate the current through the rice tower R 1:- calculate the current through the replacement resistor R2345:- calculate the voltage drop across R2:- calculates voltage drop over compensation resistance R345:-check that the resistors R2 and R345.- calculate the current through R34: c) calculate the voltage UR4 over R4 when the voltage source is connected - The resistors R3 and R4 are connected in series, ie they have the same current that passes through both resistors I34 but divides the voltage into two voltage drops UR3 and UR4.Calculate the voltage across R3:Check that resistors R3 and R4 are…

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The network N₁ shown below in Figure 3(a) contains a VCVS and is driven by an in- dependent current source. Using the values shown on the schematic, obtain the Nor- ton's equivalent network at terminals A-B of N₁ as shown in Figure 3(b). Label each component of the equivalent with its correct value. Show your work and explain in detail all assumptions you make. Jg₁ 20mA N₁ JN R3 R₁. 5KQ R₂ www 6ΚΩ + 3ΚΩ R4 7KQ V₂ (a) GN (b) μV4 B Figure 3 (a) Resistive network N₁ (b) Norton equivalent network (μ = 4V/V) B