ExamBro
ExamBro
JEE Mains · Physics · STD 12 - 3. current electricity

एक वोल्टमीटर से समान्तर क्रम में, दो बैटरियाँ, जोड़ी गई हैं। पहली, \(10 V\) तथा \(1 \Omega\) आन्तरिक प्रतिरोध की और दूसरी, \(15 V\) तथा \(0.6 \Omega\) आन्तरिक प्रतिरोध की (आरेख देखिये) तो, वोल्टमीटर के पठन (रीडिंग) का सन्निकट मान होगा :

  1. A \(12.5\)
  2. B \(24.5\)
  3. C \(13.1\)
  4. D \(11.9\)
Verified Solution

Answer & Solution

Correct Answer

(C) \(13.1\)

Step-by-step Solution

Detailed explanation

As the two cells oppose each other hence, the effective emf in closed circuit is \(15-10=5 \,\mathrm{V}\) and net resistance is \(1+\) \(0.6=1.6 \,\Omega\) (because in the closed circuit the internal resistance of two cells are in series. Current in the circuit,…
Same subject
Explore more questions on app
From JEE Mains
Explore more questions on app