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n equal cell having e.m.f. E and internal resistance  r, are connected in circuit of a resistance  R. Same current flows in circuit either they connected in series or parallel, if :
  • a)
    R = n2r
  • b)
    R = nr
  • c)
    R = r/n
  • d)
    R = r
Correct answer is option 'D'. Can you explain this answer?
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nequal cell having e.m.f.Eand internal resistancer, are connected in c...
Current when cells are connected in series



The correct answer is: R = r
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nequal cell having e.m.f.Eand internal resistancer, are connected in c...
Current when cells are connected in series



The correct answer is: R = r
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nequal cell having e.m.f.Eand internal resistancer, are connected in c...
Explanation:

Solution:
- When the unequal cells with emf E and internal resistance r are connected in a circuit of resistance R, the total resistance in the circuit will be equal to R + nr (where n is the number of unequal cells).
- In series connection, the total resistance in the circuit will be R + nr. The total emf in the circuit will be nE.
- According to Ohm's Law, the current flowing in the circuit will be I = nE / (R + nr).
- In parallel connection, the total resistance in the circuit will be R / n + r. The total emf in the circuit will still be nE.
- The current flowing in the circuit will be the same as in series connection, I = nE / (R + nr).
- Therefore, the same current flows in the circuit whether the unequal cells are connected in series or parallel when R = r/n.
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nequal cell having e.m.f.Eand internal resistancer, are connected in circuit of a resistanceR. Same current flows in circuit either they connected in series or parallel, if :a)R = n2rb)R = nrc)R = r/nd)R = rCorrect answer is option 'D'. Can you explain this answer?
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nequal cell having e.m.f.Eand internal resistancer, are connected in circuit of a resistanceR. Same current flows in circuit either they connected in series or parallel, if :a)R = n2rb)R = nrc)R = r/nd)R = rCorrect answer is option 'D'. Can you explain this answer? for Physics 2024 is part of Physics preparation. The Question and answers have been prepared according to the Physics exam syllabus. Information about nequal cell having e.m.f.Eand internal resistancer, are connected in circuit of a resistanceR. Same current flows in circuit either they connected in series or parallel, if :a)R = n2rb)R = nrc)R = r/nd)R = rCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Physics 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for nequal cell having e.m.f.Eand internal resistancer, are connected in circuit of a resistanceR. Same current flows in circuit either they connected in series or parallel, if :a)R = n2rb)R = nrc)R = r/nd)R = rCorrect answer is option 'D'. Can you explain this answer?.
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