1. The problem statement, all variables and given/known data A main circuit contains six similar bulbs connected in series. One of the bulbs has a broken filament. Voltmeters X and Y of infinite resistance are placed in the circuit as shown. What are the voltmeter readings? A) X=0 Y=0 B) X=0 Y=240 C) X=40 Y=40 D) X=240 Y=0 2. Relevant equations None 3. The attempt at a solution Answer: D. This is my reasoning: A broken filament has infinite resistance because no current can flow. So the it would "draw" all the voltage from the source. Am I correct? Also, I would like to ask, why can't the first bulb light up? Since the source is continuously supplying a current, and the current should pass through the first bulb first before passing the second bulb. Thank you.