A voltmeter of resistance 400 Ω is used to measure the potential difference across the 100 Ω resistor in the circuit shown in the figure (32-E24). (a) What will be the reading of the voltmeter? (b) What was the potential difference across 100 Ω before the voltmeter was connected?
![](https://search-static.byjusweb.com/question-images/img/study_content/content_ck_images/images/Pg20201_EX_Q48.png)