Home
Class 11
PHYSICS
Resistance of a given wire is obtained b...

Resistance of a given wire is obtained by measuring the current flowing in it and the voltage difference applied across it. If the percentage errors in the measurment of the current and the voltage difference are `3%` each, then error in the value of resistance of the wire iS :

Text Solution

Verified by Experts

`R = (V)/(I) [:. log R = log V - log I]`
`implies (Delta R)/(R) (100) = ((Delta V)/(V) + (Delta I)/(I)) (100)`
`= 3% + 3% = 6%`
Promotional Banner

Topper's Solved these Questions

  • UNITS AND MEASUREMENTS

    NARAYNA|Exercise C.U.Q|183 Videos
  • UNITS AND MEASUREMENTS

    NARAYNA|Exercise LEVEL-I (C.W)|42 Videos
  • TRANSMISSION OF HEAT

    NARAYNA|Exercise LEVEL-II(C.W)|27 Videos
  • VECTORS

    NARAYNA|Exercise LEVEL-II (H.W)|14 Videos

Similar Questions

Explore conceptually related problems

Resistance of a given wire is obtained by measuring the current flowing in it and the voltage difference applied a cross it. If the percentage errors in the measurement of the current and the voltage difference are 3% each, then error in the value of resistance of the wire is:

Resistance of a given wire is obtained by mea suring the current flowing in it and the voltage difference applied across it . If the percentage errors in the measurement of the current and the voltage difference are 3% each , then errors in the value of resistance of the wire is

If the percentage error in the measurement of length and breadth of a rectangle are 2% and 3% repectively then the percentage error in the determination of the area is 5%

The percentage error in the measurement of the voltage V is 3% and in the measurement of the current is 2%. The percentage error in the measurement of the resistance is

Show that the percentage error in the measurement of resistance by a metre bridge is minimum when the null point is near about the centre of the wire.

If the error in the measurement of radius of circle is 3% then calculate the error in measurement of area of circle :-

The pressure on a square plate is measured by measuring the force on the plate and the length of one side of the plate. The errors in the measurement of force and length are 3% and 2% respectively. The maximum error in the value of the pressure would be

If % error in length diameter current and voltage are same than which of the following affects %error in measurenet of resistivity the most .

NARAYNA-UNITS AND MEASUREMENTS-STATEMENT TYPE QUESTION
  1. Resistance of a given wire is obtained by measuring the current flowin...

    Text Solution

    |

  2. Statement-1 : Plane angle is a dimensionaless quantity. Statement-2...

    Text Solution

    |

  3. Statement-1 : The size (u) of the unit of physical quantity and its nu...

    Text Solution

    |

  4. Statement-1: The MKS system is coherent system of units. Statement-...

    Text Solution

    |

  5. Statement-1: Two quantities which are to be added must have the same d...

    Text Solution

    |

  6. Statement-1:Susceptibility is expressed as Am^(-1) Statement-2:Magne...

    Text Solution

    |

  7. Statement-1:Electromotive force is expressed in newton. Statement-2:...

    Text Solution

    |

  8. Statement-1: The quantity (e^2)/(in0 ch) is dimensionless Statemen...

    Text Solution

    |

  9. Statement-1: Electric current is a scalar Statement-2: All fundament...

    Text Solution

    |

  10. Statement-1 : Pressure can be subtracted from pressure gradient Sta...

    Text Solution

    |

  11. Statement-1 : Energy cannot be divided by volume Statement-2: Dimens...

    Text Solution

    |

  12. Statement-1: Light year is a unit of time Statement-2: Light year i...

    Text Solution

    |

  13. Statement-I: Dimensional analysis can give us the numerical value of p...

    Text Solution

    |

  14. Statement-I: The product of the numerical value and unit of physical q...

    Text Solution

    |

  15. Statement-I: Systematic errors can be removed completely. Statement-...

    Text Solution

    |

  16. Statement-I: Random errors can be positive or negative. Statement-II: ...

    Text Solution

    |

  17. Statement-I:In the measurement of g using simple pendulum generally we...

    Text Solution

    |

  18. Statement-I: When a length of 2.0 mis converted into centimeter, the r...

    Text Solution

    |

  19. Statement-I:The length of an object is measured with two instruments a...

    Text Solution

    |

  20. Statement-I: If a physical quantity has a unit, it must not be dimensi...

    Text Solution

    |

  21. Statement-1: A formula derived using dimensional analysis obeys princi...

    Text Solution

    |