Home
Class 12
PHYSICS
The n rows each containinig m cells in s...

The `n` rows each containinig `m` cells in series are joined parallel. Maximum current is taken from this combination across jan external resistance of `3 Omega` resistance. If the total number of cells used are 24 and internal resistance of each cell is `0.5 Omega` then

A

m = 8, n = 3

B

m = 6, n = 4

C

m = 12, n = 2

D

m = 2, n = 12

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    DC PANDEY|Exercise B. Assertion and reason|18 Videos

  • CURRENT ELECTRICITY

    DC PANDEY|Exercise Match the columns|4 Videos

  • CURRENT ELECTRICITY

    DC PANDEY|Exercise Check point|70 Videos

  • COMMUNICATION SYSTEM

    DC PANDEY|Exercise Subjective|11 Videos

  • ELECTROMAGNETIC INDUCTION

    DC PANDEY|Exercise Medical entrances gallery|25 Videos

Similar Questions

Explore conceptually related problems

A cell which has an emf 1.5 V is connection series with an external resistance of 10Omega . If the potential difference across the cell is 1.25 V, then the internal resistance of the cell is ("in" Omega)

In a mixed grouping of identical cells, five rows are connected in parallel and each row contains 10 cells. This combination sends a current I through an external resistance of 20Omega. if the emf and internal resistance of each cell is 1.5 V and 1 Omega, respectively then find the value of I.

Two similar cells, whether joined in series or in parallel, have the same current through an external resistance of 2Omega . The internal resistance of each cell is :

To get maximum current in a resistance of 3Omega , one can use n parallel rows of m cells each (connected in series). If the total no. of cells is 24 and the internal resistance is 0.5 ohm then

N identical cells whether joined together in series or in parallel, give the same current, when connected to an external resistance of 'R'. The internal resistance of each cell is:-

DC PANDEY-CURRENT ELECTRICITY-Taking it together
  1. Two resistance wires on joining in parallel the resultant resistance i...

    Text Solution

    |

  2. A potentiometer having the potential gradient of 2 mV//cm is used to m...

    Text Solution

    |

  3. The n rows each containinig m cells in series are joined parallel. Max...

    Text Solution

    |

  4. A 100 V voltmeter of internal resistance 20 k Omega in series with a h...

    Text Solution

    |

  5. A cell supplies a current i(1) trhough a resistnace R(1) and a current...

    Text Solution

    |

  6. Out of five resistance of ROmega each 3 are connected in parallel and ...

    Text Solution

    |

  7. Two batteries A and B each of e.m.f. 2 V are connected in series to a...

    Text Solution

    |

  8. For a cell of e.m.f. 2 V , a balance is obtained for 50 cm of the po...

    Text Solution

    |

  9. AB is a potentiometer wire of length 100 cm and its resistance is 10Om...

    Text Solution

    |

  10. Equivalent resistance between the points A and B (in Omega) .

    Text Solution

    |

  11. In the circuit shown here, what is the value of the unknown resistor R...

    Text Solution

    |

  12. Two wire of the same meta have same length, but their cross-sections a...

    Text Solution

    |

  13. The masses of the three wires of copper are in the ratio 5:3:1 and the...

    Text Solution

    |

  14. If power dissipated in the 9 Omega resistor in the circuit shown is 36...

    Text Solution

    |

  15. The reading of the ammeter in the following figure will be

    Text Solution

    |

  16. A wire of length 100 cm is connected to a cell of emf 2 V and negli...

    Text Solution

    |

  17. Two uniform wires A and B are of the same total metal and have equal m...

    Text Solution

    |

  18. In the given circuit, the resistances are given in ohm. The current t...

    Text Solution

    |

  19. The current I drawn from the 5 volt source will be

    Text Solution

    |

  20. The current in the given circuit is

    Text Solution

    |