(Solved): One more bulb is added to the circuit and the location of the switch is changed. The new circuit is ...

One more bulb is added to the circuit and the location of the switch is changed. The new circuit is shown in the figure.(Figure 2) Bulbs A, B, C, and D are identical and the switch is an ideal conductor. How does closing the switch in the figure affect the potential difference? Check all that apply. View Available Hint(s) The potential difference across A increases. The potential difference across B doubles. The potential difference across B drops to zero. The potential difference across $D$ is unchanged.