Problem 5: Mesh Analysis A student in a circuits class writes mesh equations for the circuit shown bcow and now must solve for the unknown currents (I, I2, Is, and L.). 4.7 k 3.6 k I1 1.1k I3 4.7 k 2.2 k 8.1 k 4.711 + 3.6(11-12) + 1(11-13) = 0 3.6(12 -I) + 212 +1.1(12 14)-12 1(12 1 4.7 I4) +8.1/3-9 4.7(14-13) + 1.1 (14-12) + 2.214 = 0 (a) Write the equations in matrix form and use MATLAB to solve for all four currents. The units for the currents will be in milliamps (mA). Matrix Equation: MATLAB Commands: SOLUTION: 14 = (b) Find the current through the 1.1 k resistor and find the voltage drop across the 1.1 k resistor. Show your calculations and include units in your answers