Problem 2: (Lab 1) The earth ground resistance at the base of a transmission tower is 5 0. If the tower is struck by a lightning bolt of 100kA, how much power will be dissipated in the ground?

Question Find the voltage v across the current source for the following network.

2 (a) Write the mesh-current equations (b) Use a computer to find the values of the four currents.

4. (Problem 3.56) Use mesh analysis to determine ₁ and ₂ in the circuit below.

3) a) Write a report describing the significance of strain gauges and Wheatstone bridge in applications from a chosen area of mechanical or civil or electrical/robotics engineering. Your report should contain a genuine literature review (not a website from a Google search; with a minimum of 2-3 references), diagrams and structured into: title, introduction, main body, references and appendices. The report should not exceed 500 words excluding appendices and should be written in your own words. b) Below is the arrangement of strain gauges in the Wheatstone bridge. Solve V using a voltage nodal analysis for a given Vdc-10V. Show that V=0 when R1=R2=R3=R4=R (say). Find out the value of V for a given R1=R4=10 ohms and R2=R3= 20 ohms.

Q 1 Given the values: R₁ = 214 R₂ = 364 C = 286 μF w = 12 By how much is the phase angle of the output voltage signal shifted Q 2 Given the values: R₁ = 225 R₂ = 386 C=271 μF w = 8 Calculate the amplitude of voltage gain. compared to the phase of the input voltage signal? Q 3 For the values R₁ = 981 , R₂ = 430 , C = 293 μF, w = 8; calculate b₂ ratio Hint: This form of G, is just another way of writing ZL ZL + ZT So just ZL start with the formula we know from class (Z₁ + ZT -), and you will find yourself arriving at the form of G, mentioned above in the question. And then it would be easy to get the ratio.

Prior to arriving at the laboratory to carry out this experiment, analyze the circuit shown in 1.0 (1) using superposition to calculate I3, I5, V2, and V3. Next, using Thevenin's Theorem, derive the Thevenin equivalent voltage and resistance looking into the circuit between nodes 'a' and 'b' (i.e. remove the 100 resistor). Record your calculated values in the table below under the heading "Calculated". Remember to record polarities (+ or -). Laboratory 2000-4 Network Theorems Object: To become familiar with Thevenin's Theorem and Superposition

Q5 A voltage signal is described by the function below. It has a minimum at t = 0 and two maxima. After replacing the variable K as described above, determine the positions of the maxima of this function, showing each stage of your calculation.SS

Q1. Sketch, with labelled axes, the voltage signal described by the function,

Q2. For the following functions; state whether it is an even, odd or unsymmetrical function