Home
Class 12
PHYSICS
.A cell of emf E and internal resistance...

.A cell of emf E and internal resistance r is connected across a variable resistor. Plot a graph showing variation of terminal voltage V of cell versus the current.

Promotional Banner

Topper's Solved these Questions

  • ELECTROSTATICS AND CURRENT ELECTRICITY

    CBSE COMPLEMENTARY MATERIAL|Exercise SHORT ANSWER QUESTIONS (3 MARKS )|23 Videos

  • ELECTROSTATICS AND CURRENT ELECTRICITY

    CBSE COMPLEMENTARY MATERIAL|Exercise LONG ANSWER QUESTIONS|6 Videos

  • ELECTROSTATICS AND CURRENT ELECTRICITY

    CBSE COMPLEMENTARY MATERIAL|Exercise NUMERICALS|49 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

A cell of emf epsilon and internal resistance r is connected across a variable resistor R. Plot a graph showing variation of terminal voltage V of the cell versus the current I. Using the plot, show how the emf of the cell and its internal resistance can be determined.

A cell of emf E and internal resistance r is connected across an external resistance R . Plot a graph showing the variation o P.D . Across R , verses R .

A battery of emf E and internal resistance r is connected to a variable resistor R as shown in figure. Which one of the following is true ?

CBSE COMPLEMENTARY MATERIAL-ELECTROSTATICS AND CURRENT ELECTRICITY -SHORT ANSWER QUESTIONS (2 MARKS)
  1. A battery has an emf of 12V and an internal resistance of 2 Omega. C...

    Text Solution

    |

  2. In a potentiometer arrangment, a cell of emf 1.25 V gives a balance po...

    Text Solution

    |

  3. In a meter bridge, the balance point is found to be 39.5 cm from end A...

    Text Solution

    |

  4. A meterbridge is in balance condition. Now if galvanometer and cell ar...

    Text Solution

    |

  5. If the emf of the driving cell be decreased, what will be effect on th...

    Text Solution

    |

  6. Why should the area of cross-section of the meter-bridge wire be unifo...

    Text Solution

    |

  7. Given any two limitations of Ohm’s law.

    Text Solution

    |

  8. Which one of the two, an ammeter or a milliammeter, has a higher resis...

    Text Solution

    |

  9. Name two factors on which the resistivity of a given material depends ...

    Text Solution

    |

  10. If the electron drift speed is so small (~ 10 ^(-3) m//s) and the e...

    Text Solution

    |

  11. A battery of emf 2.0 volts and internal resistance 0.1 Omega is bein...

    Text Solution

    |

  12. Why should the jockey be not rubbed against potentiometer wire ?

    Text Solution

    |

  13. What is meant by the sensitivity of a potentiometer of any given lengt...

    Text Solution

    |

  14. Five identical cells, each of emf E and internal resistance r, are con...

    Text Solution

    |

  15. An electron in a hydrogen atom is considered to be revolving around a ...

    Text Solution

    |

  16. In the given circuit, with steady current, calculate the potential dro...

    Text Solution

    |

  17. .A cell of emf E and internal resistance r is connected across a varia...

    Text Solution

    |

  18. Winding of rheostat wire are quite close to each other why do not they...

    Text Solution

    |

  19. Why is it necessary to obtain the balance point in the middle of bridg...

    Text Solution

    |

  20. What are the possible cause of one side deflection in Galvanometer whi...

    Text Solution

    |