calculate the $50\%$ level rise delay at the end of a $500$m x $0\mathrm{.}5$m wire. The sheet resistance is $0\mathrm{.}08$ Ohm$/$sq$,$ overlap capacitance is $30$ af $/$m$2,$ fridge capacitance is $40$ aF$/$m$,$ internal resistance of the signal source is $100$ Ohm, the load capacitance at the end of wire can be neglected. a$)$ b$)$ Use lumped parameters. Use distributed parameters. Use ladder model dividing the wire into $10$m pieces.