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Three identical cells, each of 4 V and internal resistance r, are connected in series to a 6 ohm resistor. If the current flowing in the circuit is 2 A. The internal resistance of each cell is​
  • a)
    0.11 ohm
  • b)
    0 ohm
  • c)
    0. 12 ohm
  • d)
    1.1 ohm
Correct answer is 'B'. Can you explain this answer?
Verified Answer
Three identical cells, each of 4 V and internal resistance r, are conn...
Total emf = 3 x 4 = 12 V
Total resistance = 6 + 3r
Current in the circuit = 2 A
Using ohms law
2 = 12/ (6+3r)
2(6+3r)=12
12+6r=12
6r = 12-12 = 0
r = 0/6 = 0
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Three identical cells, each of 4 V and internal resistance r, are connected in series to a 6 ohm resistor. If the current flowing in the circuit is 2 A. The internal resistance of each cell is​a)0.11 ohmb)0 ohmc)0. 12 ohmd)1.1 ohmCorrect answer is 'B'. Can you explain this answer?
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Three identical cells, each of 4 V and internal resistance r, are connected in series to a 6 ohm resistor. If the current flowing in the circuit is 2 A. The internal resistance of each cell is​a)0.11 ohmb)0 ohmc)0. 12 ohmd)1.1 ohmCorrect answer is 'B'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Three identical cells, each of 4 V and internal resistance r, are connected in series to a 6 ohm resistor. If the current flowing in the circuit is 2 A. The internal resistance of each cell is​a)0.11 ohmb)0 ohmc)0. 12 ohmd)1.1 ohmCorrect answer is 'B'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Three identical cells, each of 4 V and internal resistance r, are connected in series to a 6 ohm resistor. If the current flowing in the circuit is 2 A. The internal resistance of each cell is​a)0.11 ohmb)0 ohmc)0. 12 ohmd)1.1 ohmCorrect answer is 'B'. Can you explain this answer?.
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