Home
Class 12
PHYSICS
Assertion : Bending a wire does not effe...

Assertion : Bending a wire does not effect electrical resistance.
Reason : The resistance of wire is proportional to the resistivity of material.

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    NARAYNA|Exercise Level 1 C.W|64 Videos

  • CURRENT ELECTRICITY

    NARAYNA|Exercise Level 1 H.W|63 Videos

  • CURRENT ELECTRICITY

    NARAYNA|Exercise Level 6|43 Videos

  • COMMUNICATION SYSTEM

    NARAYNA|Exercise Level-II(H.W)|25 Videos

  • DUAL NATURE OF RADIATION AND MATTER

    NARAYNA|Exercise ASSERTION AND REASON|15 Videos

Similar Questions

Explore conceptually related problems

The resistivity of a wire

The resistivity of a wire

Explain why bending a wire does not affect its electrical resistance?

Assertion (A): Bending of a conducting wire effects electrical resistance. Reason( R): Resistance of a wire depends on resistivity of that material.

If 'n' is the number of free electrons in a metallic wire, then the resistance is proportional to

NARAYNA-CURRENT ELECTRICITY-C.U.Q
  1. Fuse wire is a wire of :

    Text Solution

    |

  2. Why are constantan and manganin used for making standard resistances ?

    Text Solution

    |

  3. Assertion : Bending a wire does not effect electrical resistance. Re...

    Text Solution

    |

  4. Assertion: When the radius of a copper wire is doubled, its specific r...

    Text Solution

    |

  5. The thermistors are usually made of

    Text Solution

    |

  6. For a chosen non-zero value of voltage, there can be more than one val...

    Text Solution

    |

  7. A heater coil is cut into two equal parts and only one part is now use...

    Text Solution

    |

  8. Two lamps have resistance r and R, R being greater than r. If they are...

    Text Solution

    |

  9. Two bulbs are fitted in a room in the domestic electric installation. ...

    Text Solution

    |

  10. Three identical bulbs P, Q and R are connected to a battery as shown i...

    Text Solution

    |

  11. Figure 7.44 shows three similar lamps L(1) , L(2), and L(3) connectged...

    Text Solution

    |

  12. The potential difference across a conductor is doubled, the rate of ge...

    Text Solution

    |

  13. Two metallic wires of same material and same length have different dia...

    Text Solution

    |

  14. There are two metallic wires of same material, same length but of diff...

    Text Solution

    |

  15. Two electric bulbs rated P(1) watt and V volt, are connected in series...

    Text Solution

    |

  16. In above question, if the bulbs are connected in parallel, total power...

    Text Solution

    |

  17. Which of the following causes production of heat, when current is set ...

    Text Solution

    |

  18. A constant voltage is applied between the two ends of a metallic wire ...

    Text Solution

    |

  19. A resistor R(1) dissipates the power P when connected to a certain gen...

    Text Solution

    |

  20. Back emf of a cell is due to

    Text Solution

    |