In the experiment, you may ask

BUT SIR, MY CIRCUIT DOESN'T WORK

May be these guidelines can help you..read on

1. Check and recheck the circuit, preferably by different members of the group
2. If using Ammeters, are fuses BLOWN?
   • Try bypassing the ammeter with an short circuit, OR
   • check fuses, OR
   • change meters so that the suspect meter measures voltage but NOT current
3. Check for suspect leads
   Think about what is actually wrong ( what are the circuit symptons?) and predict what would be the most likely cause that could produce this result. Which part of the circuit does this apply to ? Being the process of eliminating leads from this appropriate section of the circuit.
4. Maybe the Blue box is suspect. Try replacing it. Are there any other boxes used? Try replacing these.
5. If using the MINILAB Function Generator
   • is DC offset turned OFF ?
   • are attenuators activated as required ?
   • is oscillator frequency sweeping disabled ?
   • is AM modulation turned OFF ?
6. On FLUKE meter, have you chosen the correct meter function, for example, if measuring DC current, is this meter setup to measure DC current ?
7. If using the oscillator
   • is time base (Time/Div) and vertical scaling (Volt/Div) calibrated ?
   • is AUTO triggering enable ?
   • is × 5 magnification disabled ?
8. If using the MINILAB Bipolar power supply, are the push buttons correctly setup ? For example, is the AMPL/±15V push button pushed IN ?
9. If using small circuitmate DVMs and measuring DC quantities, is your AC/DC switch setup correctly ?

Where connecting ammeters and voltmeters, use different colour leads to distingguish +ve and -ve terminals, preferably using color RED for all +ve terminal connections. This makes circuit fault finding much easier.

Good Luck