1. What is wrong with each of the schemes shown in Fig 6.5 for lighting a flashlight bulb with a flashlight battery and a single wire? 2. What is the resistance of a lightbulb if 0.50 A flows through it when 120 V is connected across it? (b) 3. What is the resistance of a 5.4-m length of copper wire 1.5 mm in diameter? p = 1.68 x10-8 0.m 4. What is the maximum power consumption of a 3.0-V portable CD player that draws a maximum of 240mA of current? (c)