Here is all of the question and the help it gives that i need help with: Help the question gives: When lightning strikes a building the results can be very dramatic. The current in the bricks may cause considerable heating of the bricks followed by rapid expansion and failer of the structure. An engineer investigating this effect wishes to know how the electrical resistance of the house brick changes with temperature. What I have to do: Design a laboratory experiment to investigate how the resistance of a house brick varies with temperature in the range 20 degrees celcius to 800 degrees celcius. It is known that the resistance of the brick is very high. The brick is of a non uniform shape and the resistance is to be measured across the end faces P and Q.