Home
Class 12
PHYSICS
A wire is stretched 30%, what is the % c...

A wire is stretched 30%, what is the % change in its resistance?

A

0.96

B

0.69

C

0.6

D

0.3

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

If a wire of length I has a resistance of R, is stretched by 25 %. The percentage change in its resistance is ?

If a copper wire is stretched to make it 0.1% longer wha is the percentage change in its resistance?

A wire has a resistance of 16 Omega . It is melted and drawn into a wire of half its length. Calculate the resistance of new wire. What is the percentage change in its resistance?

A wire has a resistance of 16 Omega . It is melted and drawn into a wire of half its length. Calculate the resistance of the new wire. What is the percentage change in its resistance ?

A given wire is stretched to double its length. How will its resistance change ?

A copper wire iis stretched to make it 0.1% longer. What is the percentage change in its resistance?

ALLEN-TEST PAPER 2-PHYSICS
  1. If the electron of the hydrogen atom is moving with a speed of 2xx 1...

    Text Solution

    |

  2. The current in a wire varies with time according to the equation I = 4...

    Text Solution

    |

  3. A wire is stretched 30%, what is the % change in its resistance?

    Text Solution

    |

  4. Calculate the resistance of a hollow cylindrical pipe of inner and out...

    Text Solution

    |

  5. The resistance of each side of an equilateral triangle is 6 ohm. Calcu...

    Text Solution

    |

  6. Find the effective resistance between points A and B for the network s...

    Text Solution

    |

  7. In the given figure when the key is open the ammeter reading is 5 amp....

    Text Solution

    |

  8. The average translational kinetic energy of the molecules of a gas wil...

    Text Solution

    |

  9. Four molecules of a gas have speed 1, 2, 3 and 4 km s^(-1) respectivel...

    Text Solution

    |

  10. At what temperature, rms velocity of O(2) molecules will be 1//3 of H(...

    Text Solution

    |

  11. Figure shows graphs of pressure vs density for an ideal gas at two tem...

    Text Solution

    |

  12. During an experiment an ideal gas is found to obey an additional law V...

    Text Solution

    |

  13. Q cal of heat is required to raise the temperature of 1 mole of a mona...

    Text Solution

    |

  14. When an ideal diatomic gas is heated at constant pressure, the fractio...

    Text Solution

    |

  15. When 1 mole of a monatomic gas is mixed with 3 moles of a diatomic gas...

    Text Solution

    |

  16. Internal energy of an ideal gas depends upon : -

    Text Solution

    |

  17. Calculate the work done by the gas in the state diagram shown :

    Text Solution

    |

  18. A = x + y and B = xy x = (20 pm1) cm , y = (10 pm 1) cm Then whic...

    Text Solution

    |

  19. Four Screw guages are given (A) Pitch = 1 mm, no. of division circu...

    Text Solution

    |

  20. Which of the following is supplementry unit

    Text Solution

    |