Home
Class 12
PHYSICS
A cell of e.m.f. 2V and negligible inter...

A cell of e.m.f. 2V and negligible internal resistance is connected to resistor `R_(1)` and `R_(2)` as shown in the figure. The resistance of the Voltmeter `R_(1)` and `R_(2)` are `80Omega,40Omega` and `80Omega` respectively. The reading of the voltmeter is:-

A

1.78V

B

1.60V

C

0.80V

D

1.33V

Text Solution

Verified by Experts

The correct Answer is:
3
Promotional Banner

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    ALLEN |Exercise EXERCISE-V B|20 Videos
  • CIRCULAR MOTION

    ALLEN |Exercise EXERCISE (J-A)|6 Videos
  • GEOMETRICAL OPTICS

    ALLEN |Exercise subjective|14 Videos

Similar Questions

Explore conceptually related problems

What is the ratio of power consumed in resistances R_(1) and R_(2) as shown In figure ?

A battery or emf 10 V and internal resistance 3 Omega is connected to a resistot. If the current in the circuit is 0.5 A, what is the resistance of the resistor ?

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

The emf E and the internal resistance r of the battery shown in figure are 4.3V and 1.0Omega respectively. The external resistan ce R is 50Omega . The resistance of the ammeter and voltameter are 2.0Omega an d 200Omega respectively. Find the respective reading of the voltmeter.

Two batteries of e.m.f. E_(1) and E_(2) and internal resistance r_(1) and r_(2) are connected in parallel. Determine their equivelent e.m.f.

Two cells , each of emf E and internal resistance r , are connected in parallel across a resistor R . The power delivered to the resistor is maximum if R is equal to

Two batteries with e.m.f. 12 V and 13 V are connected in parallel across a load resistor ol 10 Omega . The internal resistances of the two batteries are 1 Omega and 2 Omega respectively. Tine voltage across the load lies between

A cell emf 3V and internal resistance 0.75Omega is connected to a nonlinear conductor whose V-I g raph is shown in figure obtain graphically the current drawn from the cell and its terminal voltage.

A 100 V voltmeter having an internal resistance of 20 k Omega is connected in series with a large resistance R across a 110 V line. What is the magnitude of resistance R if the voltmeter reads 5 V ?

The maximum power dissipated in an external resistance R, when connected to a cell of emf E and internal resistance r, will be ......

ALLEN -CURRENT ELECTRICITY-EX.II
  1. A voltmeter having a resistance of 998 ohms is connected to a cell of ...

    Text Solution

    |

  2. Find the potential difference between X and Y in volt is:-

    Text Solution

    |

  3. A cell of e.m.f. 2V and negligible internal resistance is connected to...

    Text Solution

    |

  4. Potentiometer wire length is 10m, having a total resistance of 10Omega...

    Text Solution

    |

  5. P,Q is a uniform wire of resistance 2000Omega and m the md point PQ. A...

    Text Solution

    |

  6. A student connects a voltmeters, ammeter and resistance according to t...

    Text Solution

    |

  7. A potentiometer wire has length 4 m and resistance 8Omega. The resista...

    Text Solution

    |

  8. If V(AB) = 4V in the given fig are, then resistance chi will be

    Text Solution

    |

  9. For the network of resistance shown in the figure the equivalent resis...

    Text Solution

    |

  10. When a potential difference is applied across the ends of a linear met...

    Text Solution

    |

  11. A current of two amperes is flowing through a cell of e.m.f. 5 volts ...

    Text Solution

    |

  12. 100 cells each of emf 5V and internal resistance 1 Omega are to be arr...

    Text Solution

    |

  13. Two resistance R(1) and R(2) are made of different material. The tempe...

    Text Solution

    |

  14. In the arrangement of resistances shown below, the effective resistanc...

    Text Solution

    |

  15. A potentiometer wire of length 1000 cm has a resistance of 10 ohms. It...

    Text Solution

    |

  16. Electromotive force of a cell is basically a

    Text Solution

    |

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

    Text Solution

    |

  18. A galvanometer has resistance G and Current I(g) produces full scale d...

    Text Solution

    |

  19. In a neon discharge tube 2.9 xx 10^(18) Ne^(+) ions move to the right ...

    Text Solution

    |

  20. When a resistance of 2 ohm is connected across terminals of a cell, th...

    Text Solution

    |