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A garland is made up of 12 LED bulbs of 0.5W each connected in series. The garland works on 12V and we light three of them, connected in parallel. a/ calculate the total power b/ calculate the total current consumed c/ if we wanted to replace these LED bulbs with incandescent bulbs, we should put 40W bulbs. These bulbs have a tungsten filament with a diameter of 1mm. Determine the length of a filament of a light bulb. d/ what total current would then be necessary with garlands operating with these filament bulbs? Is this realistic?        Plz complete solution otherwise skip.

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Using the given resistor values, determine the threshold voltage of the comparator circuit shown. R1 = 8.2 ΚΩ R2 = 4.7 kQ +V1 5 V ww ww R1 R2 Vin CMP1 + m R3 10 ΚΩ 8 Vout