2- LTSpice simulation: Draw the circuit in LTSpice and perform simulation, then put I-V curve for diode from simulation to your report. Use DC swap simulation with V_in from - 5 to 5 Volts 3-OR gate: Use LTSpice to simulate an OR gate circuit and put Input 1, Input 2 and Output waveforms on your Report. Hint: Use 5V for High and GND (OV) for Low. OR gate circuit is made with diodes.