Home
Class 12
PHYSICS
A number of identical cells, n , each of...

A number of identical cells, n , each of e.m.f. E, internal resistance r connected in series are charged by a d.c. source of e.m.f. E', using a resitor R Deduce the expresison for the charging current and the potential difference across the combination of the cells.

Promotional Banner

Topper's Solved these Questions

  • ELECTRIC CURRENT. RESISTANCE AND E.M.F

    MODERN PUBLICATION|Exercise EXERCISE|64 Videos
  • DISPERSION

    MODERN PUBLICATION|Exercise EXERCISE|54 Videos
  • ELECTRIC FIELD

    MODERN PUBLICATION|Exercise EXERCISE|95 Videos

Similar Questions

Explore conceptually related problems

Ten identical cells each of e.m.f. E and internal resistance r are connected in series to form a closed circuit. An ideal voltmeter connected across three cells, will read

Two cells of the same e.m.f. E but internal resistance r_1 and r_2 are connected in series to an external resistor R (fig. EP 3.25). What should be the value of R so that the potential difference across the terminals of the first cell becomes zero?

n cells, each having emf. E and internal resistance r are connected in parallel. What is the net internal resistance of the combination?

Two identical cells, each of emf E, having negligible internal resistanc,e are connected in parallel with each other across the external resistance R. What is the current through this resistance?

n cells, each having emf e, are connected in series what is the emf of the combination?

n cells of e.m.f E and internal resistance r are connected in series with an external resistance R . the current will increase n times that of a single cell, if

What is the difference between e.m.f. and potential diffrence?

MODERN PUBLICATION-ELECTRIC CURRENT. RESISTANCE AND E.M.F-EXERCISE
  1. A cell of e.m.f. E an internal resistance r is connected across an ext...

    Text Solution

    |

  2. Obtain the condition fo rmaximum current through a resisitor, when a n...

    Text Solution

    |

  3. Two cells of e.m.f E1 and E2 have internal resistance r1 and r2 respec...

    Text Solution

    |

  4. n cells, each having emf. E and internal resistance r are connected in...

    Text Solution

    |

  5. Show with the help of a diagram, how two cells may be connected in par...

    Text Solution

    |

  6. Two identical cells, each of emf E, having negligible internal resista...

    Text Solution

    |

  7. A number of identical cells, n , each of e.m.f. E, internal resistance...

    Text Solution

    |

  8. Show that the resistance of a conductor is given by: R = (ml)/(n e^2 t...

    Text Solution

    |

  9. State Ohm's law and derive it from the basic ideas of drift velocity o...

    Text Solution

    |

  10. Resistance of a conductor depends on:

    Text Solution

    |

  11. Explain the effect of temperature on the resistivity of pure semicondu...

    Text Solution

    |

  12. What is the need of combining different resistors? What is the resulta...

    Text Solution

    |

  13. With the help of a diagram derive the formula for the equivalent resis...

    Text Solution

    |

  14. What is the need of combining different resistors? What is the resulta...

    Text Solution

    |

  15. Why are resistance connected in parallel?

    Text Solution

    |

  16. What is the difference between e.m.f. and potential diffrence?

    Text Solution

    |

  17. Obtain the condition fo rmaximum current through a resisitor, when a n...

    Text Solution

    |

  18. Obtain the condition for maximum current through a resistor, when a nu...

    Text Solution

    |

  19. Memory cells are

    Text Solution

    |

  20. Deduce the condition for obtaining maximum current through an external...

    Text Solution

    |