Home
Class 12
PHYSICS
A storage battery of emf 8.0 V and inter...

A storage battery of emf 8.0 V and internal resistance `0.5 Omega` is being charged by a 120 V dc supply using a series resistor of `15.5 Omega`. What is the terminal voltage of the battery during charging? What is the purpose of having a series resistor in the charging circuit?

Text Solution

Verified by Experts

81.25 V, the series resistor limits the current drawn from the external source. In its absence, the current will be dangerously high
Promotional Banner

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    AAKASH SERIES|Exercise PROBLEMS (LEVEL-1)|17 Videos

  • COMMUNICATION SYSTEMS

    AAKASH SERIES|Exercise PRACTICE EXERCISE (TV Antenna)|16 Videos

  • CURRENT ELECTRICITY

    AAKASH SERIES|Exercise EXERCISE - IA|2 Videos

Similar Questions

Explore conceptually related problems

A storage battery of emf 8.0 V and internal resistance 0.5 Omega is being charged by a 120V dc supply using a series resistor of 15.5Omega . what in the terminal voltage of the battery during charging ? What is the purpose of having a series resistor in the charging circuit?

A storage battery of emf 8V and internal resistance is being charged by a 120 V D.C. supply using a series resistor of What is the terminal voltage of the battery during charging? What is the purpose of having a series resistor in the charging circuit?

A battery of EMF 10 V, with internal resistance 1 Omega is being charged by a 120 V d.c. supply using a series resistance of 10 Omega . The terminal voltage of the battery is

A battery of six cells each of e.m.f . 2V and internal resistance 0.5Omega is being charged by D.C. mains of e.m.f. 220V by using an external resistance of 10Omega . What is the potential difference across the battery?

A battery of emf 2.0 V and internal resistance 0.10 Omega is being charged with a current of 5.0 A . Find the potential difference between the terminals of the battery?

A battery of emf 2.0 volts and internal resistance 0.10(Omega) is being charged with a current of 5.0A. What is the potential difference between the terminals of the battery?

A battery of six cells each of e.m.f. 2V and internal resistance 0.5Omega is being charged by D.C. mains of e.m.f. 220V by using an external resistance of 10Omega what will be the charging current.

An ideal voltmeter V is connected to a 2.0 Omega resistor and a battery with emf 5.0 V and internal resistance 0.5 Omega as shown in figure (a) What is the current in the 2.0 Omega resistor? (b) What is the terminal voltage of the battery? (c) What is the reading of the voltmeter?

A battery of emf 10 V and internal resistance 3 Omega is connected to a resistor. If the current in the circuit is 0.5 A, what is the resistance of the resistors ? What is the terminal voltage of the battery when the circuit is closed ?

A car battery with a 12V e.m.f. and an internal resistance of 0.04 Omega is being charged with a current of 50A. The potential difference V across the terminals of the battery are:

AAKASH SERIES-CURRENT ELECTRICITY-PROBLEMS (LEVEL-II)
  1. At room temperature (27.0 .^(@)C) the resistance of a heating element ...

    Text Solution

    |

  2. Determine the current in each branch of the network shown in figure.

    Text Solution

    |

  3. A storage battery of emf 8.0 V and internal resistance 0.5 Omega is be...

    Text Solution

    |

  4. Two wires of equal length, one of aluminium and the other of copper ha...

    Text Solution

    |

  5. (a) Given n resistors each of resistance R, how will you combine them ...

    Text Solution

    |

  6. Determine the equivalent resistance of networks shown in figures above

    Text Solution

    |

  7. Given the resistances 2 Omega , 3 Omega , 4 Omega how will you combine...

    Text Solution

    |

  8. The correct combination of three resistances 1Omega, 2Omega and 3Omega...

    Text Solution

    |

  9. Given the resistances 1 Omega , 2 Omega , 3 Omega how will you combine...

    Text Solution

    |

  10. (6//11) Omega

    Text Solution

    |

  11. Figure 6.13 shows a 2.0 V potentiometer used for the determination of ...

    Text Solution

    |

  12. The earth’s surface has a negative surface charge density of 10^(-9) C...

    Text Solution

    |

  13. Siix lead-acid type of secondary cells, each of emf 2.0 V and internal...

    Text Solution

    |

  14. A secondary cell after long use has an emf of 1.9 V and a large intern...

    Text Solution

    |

  15. Determine the current drawn from a 12V supply with internal resistance...

    Text Solution

    |

  16. Figure 6.36 shows a potentiometer with a cell of emf 2.0 V and interna...

    Text Solution

    |

  17. Figure 6.36 shows a potentiometer with a cell of emf 2.0 V and interna...

    Text Solution

    |

  18. Figure 6.36 shows a potentiometer with a cell of emf 2.0 V and interna...

    Text Solution

    |

  19. Figure 6.36 shows a potentiometer with a cell of emf 2.0 V and interna...

    Text Solution

    |

  20. Figure shows a potentiometer with a cell of 2.0 V and internal resista...

    Text Solution

    |