Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Current Electricity

Question:

Answer the following questions relating to the adjoining circuit diagram. When the voltmeter is connected across the 100W resistance the ammeter reading is 0.04 amp.

If the voltmeter were an ideal one then the reading of the voltmeter would have been 

Options:

3.2V 

3.4V

3.238 V

3.00 V

Correct Answer:

3.238 V

Explanation:

$V = \frac{100}{105} 3.4 = 3.238V$