Home
Class 12
PHYSICS
The current in a conductor and the poten...

The current in a conductor and the potential difference across its ends are measured by an ammeter and a voltmeter.The meters draw negligible current.The ammeter is accurate but the vlotmeter has a zero error(that is ,it does not read zero when no potential difference is applied).Calculate the zero error if the readings for two different conditions are 1.75A, 14.4Vand 2.75a, 22.4V.

A

`0.4 volt`

B

`0.8 volt`

C

`-0.4 volt`

D

`-0.8 volt`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    RESONANCE|Exercise Exercise-1 (Part-3)|2 Videos

  • CURRENT ELECTRICITY

    RESONANCE|Exercise Exercise-2 (Part-1)|25 Videos

  • CURRENT ELECTRICITY

    RESONANCE|Exercise Exercise-1 (Part-1)|46 Videos

  • COMMUNICATION SYSTEMS

    RESONANCE|Exercise Exercise 3|13 Videos

  • DAILY PRACTICE PROBLEM

    RESONANCE|Exercise DPP.No.71|1 Videos

Similar Questions

Explore conceptually related problems

The current flowing through a conductor and the potential difference across its two ends are as per reading of the ammeter and the voltmeter shown in (Fig. 3.50). Find the resistance of the conductor. .

The reading of current flowing through a conductor and the potential difference its two end are shown in the ammeter and volmeter given below. What will be the value of resistance in it?

The potential difference across a 4 H inductor vary with time is as shown. The current is Zero at t = 0, Then the current at time t =2s

Three voltmeters all having different resistance, are joined as shown. When some potential difference is applied acros A and B , their readings are V_1,V_2 and V_3. Then

How much current flows through a 2kOmega resistor when a potential difference of 4V is applied across its ends?

How much current flows through a 2 k Omega resistor when a potential difference of 4 V is applied across its ends ?

How much current is flowing through a 1kOmega resistor when a potential difference of 2 V is applied across its end ?

How much current is flowing throught a 1k Omega rsistor when a potential difference of 2V is applied across its end ?

Calculate the heat generated in joule in a coil when potential difference of 30 volts is applied across it. The current of 0.8 A is passed for 4 minutes.

The potential difference across a 2-H inductor as a function of time is shown in Fig. At time t = 0, current is zero. Current at t = 1 s is

RESONANCE-CURRENT ELECTRICITY-Exercise-1 (Part-2)
  1. In the circuit shown in Fig.6.2, the heat produced in 5Omega resistor,...

    Text Solution

    |

  2. A 50 W bulb is in series with a room heater and the combination is con...

    Text Solution

    |

  3. The equivalent resistance between the points A and B is:

    Text Solution

    |

  4. A battery of internal resistance 4Omega is connected to the network of...

    Text Solution

    |

  5. In these circuits all the batteries are indentical and have negllgible...

    Text Solution

    |

  6. Two nonideal batteries are connected in parallel. Consider the followi...

    Text Solution

    |

  7. Twelve cells each having the same e.m.f are connected in series and...

    Text Solution

    |

  8. Two cells of e.m.f. 10V & 15V are connected in parallel to each other ...

    Text Solution

    |

  9. N sources of current with different emf's are connected as shown in Fi...

    Text Solution

    |

  10. The reading of voltmeter is

    Text Solution

    |

  11. The length of a wire of a potentiometer is 100 cm, and the e.m.f. of i...

    Text Solution

    |

  12. The current through the ammeter shown in figure is 1 A. If each of the...

    Text Solution

    |

  13. The ammeter shown in the figure consists of a 480Omega coil conneted i...

    Text Solution

    |

  14. A galvanometer together with an unkonwn resistance in series is connec...

    Text Solution

    |

  15. A potentiometer wire of length 100 cm has a resistance of 100Omega it ...

    Text Solution

    |

  16. The potentiometer wire AB shown in figure is 50cm long.When AD=30cm, n...

    Text Solution

    |

  17. The current in a conductor and the potential difference across its end...

    Text Solution

    |

  18. In the given circuit, no current is passing through the galvanometer. ...

    Text Solution

    |

  19. In the circuit P != R, the reading of the galvanometer is same with s...

    Text Solution

    |

  20. Salt water contains n sodium ions (Na+) per cubic meter and n chloride...

    Text Solution

    |