A DC circuit has resistances of 10Ω, 12Ω, and 10Ω respectively. Also has 2 light bulbs with identical tungsten (resistivity = 5.6* 10^-8) filament bulbs with filament thickness of 12um and length of 1.2cm. The source is a 12V. what is the power loss over the first light bulb? I am not entirely sure which equations to use how ever the ones which i thought to use are: V=RI P=VI P=V^2 / R I am really stuck and dont know how to find the acual power loss. I think my main issue is gather the correct information and implimenting it in the right situation. I have attempted to find the total, R1+R2+R3= 32Ω And then i have divided each by the source 12... 2.66A Can someone please direct me in the right way...? I am gettin quiet frustrated with it!!