Home
Class 12
PHYSICS
100 cells each of emf 5V and internal re...

100 cells each of emf 5V and internal resistance `1 Omega` are to be arranged to produce maximum current in a `25 Omega` resistance. Each row contains equal number of cells. Find the number of rows.

A

2

B

4

C

5

D

10

Text Solution

Verified by Experts

The correct Answer is:
1
Promotional Banner

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    ALLEN|Exercise EXERCISE-V B|20 Videos

  • CIRCULAR MOTION

    ALLEN|Exercise EXERCISE (J-A)|6 Videos

  • GEOMETRICAL OPTICS

    ALLEN|Exercise subjective|14 Videos

Similar Questions

Explore conceptually related problems

A battery of 24 cells each of emf 1.5 V and internal resistnace 2Omega is to be connected in order to send the maximum current through a 12Omega resistor. The correct arrangement of cells will be

24 cells, each of emf 1.5V and internal resistance is 2Omega connected to 12Omega series external resistance. Then,

12 cells, each of emf 1.5 V and internal resistance of 0.5Omega , are arranged in m rows each containing n cells connected in series, as shown. Calculate the values of n and m for which this combination would send maximum current through an external resistance of 1.5 Omega .

36 cells each of internal resistance 0.5 Omega and emf 1.5 V each are used to send current through an external circuit of 2 Omega resistance. Find the best mode of grouping them and the current through the external circuit.

A cell of emf 16V and internal resistant 4 Omega can deliver maximum power to a load of resistance R where R is equal to

Eight cells marked 1 to 8, each of emf 5 V and internal resistance 0.2 Omega are connected as shown. What is the reading of ideal voltmeter ?

A set of 4 cell each of emf 2V and internal resistance 1.5 Omega are connected across an external load of 10 Omega with 2 rows, two cells in each row. Calculate the current in each row and potential difference across 10 Omega

Ten cells each of emf 1 V and internal resistance 1Omega are connected inseries. In this arrangement, polarity of two cells is reversed and the system is connected to an external resistance of 2Omega . Find the current in the circuit.

A battery of 20 cells (each having e.m.f. 1.8V and internal resistance 0.1Omega is charged by 220 volts and the charging current is 15A. Calculate the resistance to be put in the circuit.

24 cells of emf 1.5 V each having internal resistance of 1 ohm are connected to an external resistance of 1.5 ohms. To get maximum current,

ALLEN-CURRENT ELECTRICITY-EX.II
  1. Ratio of amplitude for two wave is 1:6.Find the ratio of intensity?

    Text Solution

    |

  2. A current of two amperes is flowing through a cell of e.m.f. 5 volts ...

    Text Solution

    |

  3. 100 cells each of emf 5V and internal resistance 1 Omega are to be arr...

    Text Solution

    |

  4. Two resistance R(1) and R(2) are made of different material. The tempe...

    Text Solution

    |

  5. In the arrangement of resistances shown below, the effective resistanc...

    Text Solution

    |

  6. A potentiometer wire of length 100cm has a resistance of 10Omega. It i...

    Text Solution

    |

  7. Electromotive force of a cell is basically a

    Text Solution

    |

  8. A battery of emf 10 V and internal resistance 0.5 Omega is connected a...

    Text Solution

    |

  9. A galvanometer has resistance G and Current I(g) produces full scale d...

    Text Solution

    |

  10. In a neon discharge tube 2.9 xx 10^(18) Ne^(+) ions move to the right ...

    Text Solution

    |

  11. When a resistance of 2 ohm is connected across terminals of a cell, th...

    Text Solution

    |

  12. Two nonideal batteries are connected in parallel. Consider the followi...

    Text Solution

    |

  13. The current in 8Omega resistance is (as per given circuit)

    Text Solution

    |

  14. Assertion : Electric field inside a hollow sphere conductor is 0. Rea...

    Text Solution

    |

  15. Assertion: A voltmeter must b e connected in parallel in a circuit and...

    Text Solution

    |

  16. Assertion : Electric field outside the conducting wire which carreis a...

    Text Solution

    |

  17. Assertion:- Kirchhoff's voltage law indicates that field is conservati...

    Text Solution

    |

  18. Assertion: Terminal potential difference of a cell is always less than...

    Text Solution

    |

  19. Assertion: When wheatstone bridge is balanced then current through cel...

    Text Solution

    |

  20. Assertion: Potentiometer measures correct value of emf of a cell. Re...

    Text Solution

    |