Home
Class 12
PHYSICS
When resistance of 2Omega is conn...

When resistance of ` 2Omega ` is connected across the terminals of a battery, the current is 0.5A. When the resistance across the terminal is ` 5 Omega`, the current is 0.25A. (i) Determine the emf of the battery (ii) What will be current drawn from the cell when it is short circuited.

Text Solution

Verified by Experts

E = 1.5 V, I = 1.5 A
Promotional Banner

Topper's Solved these Questions

  • ELECTROSTATICS AND CURRENT ELECTRICITY

    CBSE COMPLEMENTARY MATERIAL|Exercise LONG ANSWER QUESTIONS|6 Videos

  • ELECTRONIC DEVICES

    CBSE COMPLEMENTARY MATERIAL|Exercise NUMERICALS|7 Videos

  • SAMPLE QUESTION PAPER 2019

    CBSE COMPLEMENTARY MATERIAL|Exercise Section C|19 Videos

Similar Questions

Explore conceptually related problems

When a resistance of 2 Omega is connected across the terminals of a cell, the current is 0.5 A. When resistance is increased to 5 Omega , the current is 0.25 A. the emf of the cell is

When a resistance of 2 ohm is placed across a battery the current is 1 A and when the resistance across the terminals is 17 ohm, the current is 0.25A. The emf of the battery is

When a resistance of 2 ohm is connected across terminals of a cell, the current is 0.5 A . When the resistance is increased to 5 ohm, the current is 0.25 A The e.m.f. of the cell is

A current of 2A flows through a 2 Omega resistor when connected across a battery. The same battery supplies a current of 0.5A when connected across a 9Omega resistor The internal resistance of the battery is

A current of 2 A flows through a 2 Omega resistor when connected across a battery. The same battery supplies a current of 0.5 A when connected across a 9 Omega resistor. The internal resistance of the battery is

A battery of e.m.f 10V and internal resistance 3Omega is connected to a resistor.If the current in the circuit is 0.5A,then the resistance of the resistor is

CBSE COMPLEMENTARY MATERIAL-ELECTROSTATICS AND CURRENT ELECTRICITY -NUMERICALS
  1. With a certain unknown resistance X in the left gap and a resistance o...

    Text Solution

    |

  2. Figure show a potentiometer circuit for comparison of two resistances....

    Text Solution

    |

  3. In a potentiometer, a standard cell of emf 5V of negligible internal r...

    Text Solution

    |

  4. Potential difference across terminals of a cell are measured (in volt)...

    Text Solution

    |

  5. Four cells each of internal resistance 0.8 Omega and emf 1.4 V, d a...

    Text Solution

    |

  6. In the figure, an ammeter A and a resistor of resistance R = 4 Omega ...

    Text Solution

    |

  7. In the circuit shown, the reading of voltmeter is 20V. Calculate resis...

    Text Solution

    |

  8. (i) Calculate Equivalent Resistance of the given electrical network b/...

    Text Solution

    |

  9. A potentiometer wire AB of length 1m is connected to a driver cell of ...

    Text Solution

    |

  10. A battery of emf 10 v and internal resistane 3 Omega is connected to ...

    Text Solution

    |

  11. A network of resistance is connected to a 16V battery with internal re...

    Text Solution

    |

  12. The number density of free electrons in a copper conductor is estimate...

    Text Solution

    |

  13. A voltmeter of resistance 400 Omega is used to measure the potential...

    Text Solution

    |

  14. Find magnitude of current supplied by battery. Also find potential dif...

    Text Solution

    |

  15. A copper wire of length 3 m and radius r is nickel plated till its rad...

    Text Solution

    |

  16. Given two resistors X and Y whose resistances are to be determined usi...

    Text Solution

    |

  17. When resistance of 2Omega is connected across the terminals of ...

    Text Solution

    |

  18. A part of a circuit in steady state, along with the currents flowing i...

    Text Solution

    |

  19. With two resistance R1 and R2 (>R1) in the two gaps of a metre bridge ...

    Text Solution

    |

  20. A voltmeter with resistance 500 Omega is used to measure the emf of a ...

    Text Solution

    |