Eight lights are connected to in parallel to a 110V power source by two leads of total resistance 1.5 ohm. If 240 mA flows through each lamp, what is the fraction of the total power wasted in the leads? You got a 6 Volt battery, and have to design a voltage divider using 1 ohm resistors to achive an voltage of 4 volts. I get the answer to be three with trial and error, but there must be a proper approach to the question? A 2.8 kiloohm and a 2.1 kiloohm resistor are connected parallel, this combination is connected in series with a 1.8 kiloohm resistor. if each resistor is rated at 0.5 W, what is the maximum voltage that can be passed across the network? I get the combined resistance to 3 kiloohms. But then using R = V^2 / P i dont get the correct voltage. Why?