Home
Class 12
PHYSICS
The heat generated in a circuit is depen...

The heat generated in a circuit is dependent upon the resistance, current and time for which the current is flown. If the error in measuring the above are 1%, 2% and 1% respectively, then maximum error in measuring the heat is

A

0.08

B

0.06

C

0.18

D

0.12

Text Solution

Verified by Experts

The correct Answer is:
B
`H=i^(2) Rt`
`:.` % error in H=2(%error in i) +(%error in R) +(%error in t)
`=2xx2+1+1xx1=6%`
Promotional Banner

Topper's Solved these Questions

  • MEASUREMENTS

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise EXERCISE 2 (MISCELLANEOUS PROBLEMS)|17 Videos

  • MEASUREMENTS

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise EXERCISE 2 (MISCELLANEOUS PROBLEMS)|17 Videos

  • MAGNETISM-II

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MHT CET Corner|8 Videos

  • MHTCET 2007

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise PHYSICS|50 Videos

Similar Questions

Explore conceptually related problems

The heat generated in a cirucit is dependent upon the resstance, current and time for which the current is flown. If the error in measuring the above are as 1%,2% and 1% the maximum error in measuring heat will be

The heat produced in a long wire is characterised by resistance , current and time through which the current passes. If the errors in measuring these quantities are respectively 1%, 2% and 1% then total error in calculating the energy produced is

The heat generated in a circuit is given by Q = I^(2) Rt , where I is current , R is resistance , and t is time . If the percentage errors in measuring I , R , and t are 2% , 1% , and 1% , respectively , then the maximum error in measuring heat will be

The heat dissipated in a resistance can be obtained by the measurement of resistance, current and time. If the maximum precentage error in the mesurement of these quanties is %,2% and 1% respectively. The maximum percentage error in the determination of the dissipated heat is -

The percentage error in measurements of length and time period is 2% and 1% respectively . The percentage error in measurements of 'g' is

The percentage errors in the measurement of length and time period of a simple pendulum are 1% and 2% respectively. Then, the maximum error in the measurement of acceleration due to gravity is

The density of a material in the shape of a cube is determined by measuring three sides of the cube and its mass. If the relative errors in measuring the mass and length are respectively 1.5% and 1% , the maximum error in determining the density is:

Heat generated in a circuit is given by H = I^2 Rt. If error in measuring current I, resistance R and time t are 2%, 1% and 3% respectively, then percentage error in calculating heat is :

MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-MEASUREMENTS-PRACTICE EXERCISE (EXERCISE - 1)
  1. In which of the following numerical values, all zeros are significant?

    Text Solution

    |

  2. What is the number of significant figure in (3.20 + 4.80) ""xx10^(5)?

    Text Solution

    |

  3. Subtract 0.2 J from 7.26 and express the result with correct number of...

    Text Solution

    |

  4. The length, breadth and thickness of a sheet are 4.234m, 1.005 m and 2...

    Text Solution

    |

  5. Multiply 107.88 by 0.610 and express the result with correct number of...

    Text Solution

    |

  6. The radius of a thin wire is 0.16mm. The area of cross section taking ...

    Text Solution

    |

  7. Which of the following measurement is most precise?

    Text Solution

    |

  8. The mean length of an object is 5cm. Which of the following measureme...

    Text Solution

    |

  9. If error in measuring diameter of a circle is 4 %, the error in the ra...

    Text Solution

    |

  10. The heat generated in a circuit is dependent upon the resistance, cur...

    Text Solution

    |

  11. A force F is applied on a square plate of side L. If the percentage er...

    Text Solution

    |

  12. A cuboid has volume V=lxx2lxx3l, where l is the length of one side. If...

    Text Solution

    |

  13. If the error in the measurement of momentum of a particle is (+ 100%),...

    Text Solution

    |

  14. The radius of a ball is (5.2pm0.2) cm. The percentage error in the vol...

    Text Solution

    |

  15. The random error in the arithmetic mean of 100 observations is x, then...

    Text Solution

    |

  16. A physical quantity Q is calculated according to the expression Q=(A...

    Text Solution

    |

  17. A capillary tube is attached horizontally to a constant pressure head ...

    Text Solution

    |

  18. The length of a strip measured with a meter rod is 10.0cm. Its width m...

    Text Solution

    |

  19. The length of a cylinder is measured with a meter rod having least cou...

    Text Solution

    |

  20. A physical quantity is given by X=M^(a)L^(b)T^(c). The percentage erro...

    Text Solution

    |