Home
Class 12
PHYSICS
A battery of e.m.f. 10 V and internal re...

A battery of e.m.f. `10 V` and internal resistance `0.5 ohm` is connected across a variable resistance `R`. The value of `R` for which the power delivered in it is maximum is given by

A

`0.5 Omega`

B

`1 Omega`

C

`1.5 Omega`

D

`2 Omega`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    MOTION|Exercise EXERCISE -3 SECTION -A (PREVIOUS YEAR PROBLEMS NEET)|34 Videos

  • CURRENT ELECTRICITY

    MOTION|Exercise EXERCISE -3 SECTION -B (PREVIOUS YEAR PROBLEMS JEE MAIN)|42 Videos

  • CURRENT ELECTRICITY

    MOTION|Exercise EXERCISE -1 (OBJECTIVE PROBLEMS NEET)|64 Videos

  • CONSTRAINED MOTION

    MOTION|Exercise EXAMPLES|12 Videos

  • ELASTICITY

    MOTION|Exercise EXERCISE -3|60 Videos
MOTION-CURRENT ELECTRICITY-EXERCISE -2 (OBJECTIVE PROBLEMS NEET)
  1. The resistance across P and Q in the given figure is

    Text Solution

    |

  2. Electromotive force of a cell is basically a

    Text Solution

    |

  3. A battery of e.m.f. 10 V and internal resistance 0.5 ohm is connected ...

    Text Solution

    |

  4. The resistance of the circuit between A and B is :

    Text Solution

    |

  5. Two cells X and Y are connected to a resistance of 10Omega shown in th...

    Text Solution

    |

  6. In a torch there are two cells each of 1.45 volt and 0.15 Omega . Each...

    Text Solution

    |

  7. Kirchoff's second law is based on the law of conservation of

    Text Solution

    |

  8. Four resistances are connected in a circuit as shown in the following ...

    Text Solution

    |

  9. In the following circuit diagram the value of resistance X for the pot...

    Text Solution

    |

  10. Which of the following statement is wrong

    Text Solution

    |

  11. The e.m.f. of a cell is 2.0 volt and the internal resistance is 0.1ohm...

    Text Solution

    |

  12. The resistance of the galvanometer is 25 Omega it gives a full scale ...

    Text Solution

    |

  13. Which of the statment is wrong :–

    Text Solution

    |

  14. In a meter bridge the null point is obtained at the middle point of th...

    Text Solution

    |

  15. A new flashlight cell of e.m.f. 1.5 volts given a current of 15 amps. ...

    Text Solution

    |

  16. The resistance of galvanometer is G ohm and the range is 1 volt. The v...

    Text Solution

    |

  17. The reading of Ammeter in ampere for following circuit is

    Text Solution

    |

  18. It is observed in a potentiometer experiment that no current passes th...

    Text Solution

    |

  19. When no current is passed through a conductor,

    Text Solution

    |

  20. Internal resistance of primary cell depends on :–

    Text Solution

    |