Home
Class 12
PHYSICS
The variation of terminal potential diff...

The variation of terminal potential difference (V) with current flowing through a cell is as shown

The emf and internal resistance of the cell are

A

`6V , 2 Omega `

B

`3V, 2 Omega `

C

`6 V , 0.5 Omega `

D

`3V ,0.5 Omega `

Text Solution

Verified by Experts

The correct Answer is:
D

slope `m=r= 0.5 Omega`
` V_(AB) = E-Ir `
when `I=0 ,v=3 implies =3v`
Promotional Banner

Topper's Solved these Questions

  • K-CET-PHYSICS-2015

    SUNSTAR PUBLICATION|Exercise multiple choice questions|60 Videos
  • K-CET_PHYSICS - 2017

    SUNSTAR PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS|60 Videos

Similar Questions

Explore conceptually related problems

Define internal resistance of a cell.

Why is that the terminal potential difference is always less than the e.m.f. of a cell?

5 rows of 10 identical cells, connected in series, send a current I through an external resistance of 20 ohm. If the emf and internal resistance of each cell is 1.5 volt and 1 Omega respectively then the value of I (amp) is

Obtain an expression for the equivalent emf and internal resistance of two cells connected in parallel.

Two identical cells either in series or in parallel combination , gives the same current of 0.5 A through external resistance of 4Omega . Find emf and internal resistance of each cell.

A cell supplies a current of 0.9 A through a 2 Omega resistor and a current of 0.3 A through a 7 Omega resistor. The internal resistance of the cell is

Two cells of internal resistance r_1 and r_2 and of same emf are connected in series across a resistor of resistance R. If the terminal potential difference across the call of internal resistance r_1 is zero , then the value of R is

7 cells each of emf epsilon and internal resistance r are to be connected in series. If due to oversight one cell is connected wrongly, the emf and internal resistance of the combination will be :

The potential difference between the terminals of a cell in open circuit is 2.2 V. With resistance of 5 Omega across the terminals of a cell, the terminal potential difference is 1.8 V. The internal resistance of the cell is

A cell supplies a current of 0.9 A through a 2Omega resistor and a current of 0.3 A through a 7Omega resistor. The internal resistance of the cell is

SUNSTAR PUBLICATION-K-CET-PHYSICS-2019-MULTIPLE CHOICE QUESTIONS
  1. Two metal plates are separated by 2 cm. The potentials of the plates a...

    Text Solution

    |

  2. The equivalent capacitance between A and B is

    Text Solution

    |

  3. A capacitor of capacitance C charged by an amount Q is connected in pa...

    Text Solution

    |

  4. Though the electron drift velocity is small and electron charge is ver...

    Text Solution

    |

  5. Masses of three wires of copper are in the ratio 1 : 3 : 5 and their ...

    Text Solution

    |

  6. An aluminium sphere is dipped into water. Which of the following is t...

    Text Solution

    |

  7. A thermodynamic system undergoes a cyclic process ABC as shown in the ...

    Text Solution

    |

  8. One mole of O2 gas is heated at constant pressure starting at 27^@C. H...

    Text Solution

    |

  9. A piston is performing S.H.M. in the vertical direction with a frequen...

    Text Solution

    |

  10. The equation of a stationary wave is y = 2 sin ((pi x)/(15)) cos ( 48...

    Text Solution

    |

  11. An inductor of inductance L and resistor R are joined together in seri...

    Text Solution

    |

  12. An electromagnetic wave is travelling in x-direction with electric fie...

    Text Solution

    |

  13. The phenomenon involved in the reflection of radio-waves by ionosphere...

    Text Solution

    |

  14. A point object is moving uniformly towards the pole of a concave mirro...

    Text Solution

    |

  15. A certain prism is found to produce a minimum deviation of 38° It prod...

    Text Solution

    |

  16. In the given circuit, the current through 2 Omega resistor is

    Text Solution

    |

  17. Kirchhoff.s junction rule is a reflection of

    Text Solution

    |

  18. The variation of terminal potential difference (V) with current flowin...

    Text Solution

    |

  19. In a potentiometer experiment, the balancing point with a cell is at a...

    Text Solution

    |

  20. The magnetic fields at the centre .O’ in the given figure is

    Text Solution

    |