Home
Class 12
PHYSICS
A unit cube of copper and iron have...

A unit cube of copper and iron have

A

Same R and same `sigma`

B

Same R and different `sigma`

C

Different R and different `sigma`

D

Same `sigma` and different R

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • MODEL TEST PAPER 10

    KCET PREVIOUS YEAR PAPERS|Exercise PHYSICS|60 Videos

  • MODEL TEST PAPER 4

    KCET PREVIOUS YEAR PAPERS|Exercise PHYSICS|60 Videos

Similar Questions

Explore conceptually related problems

A battery is connected to a thermocouple of copper and iron. The two junctions will be

A mixture containing sulphides of copper and iron is called …………….

Two wires are of the same length, same radius, but one of them is of copper and the other is of iron. Which will have more resistance?

Draw the diagram of an electrolytic cell used in the purification of copper and label in the purification of copper and label the electrode having impure copper.

Copper crystallizes in a face-centred cublic lattice with a unit cell length of 361pm. What is the radius of copper atom in pm ?

KCET PREVIOUS YEAR PAPERS-MODEL TEST PAPER 3-(PHYSICS)
  1. A six volt battery is connected with a resistance. A current of 2 ampe...

    Text Solution

    |

  2. The galvanometer constant of a tangent galvanometer depends upon :

    Text Solution

    |

  3. A unit cube of copper and iron have

    Text Solution

    |

  4. At very low temperature , a semi-conductor becomes

    Text Solution

    |

  5. The resistance of a shunt which should be connected across a galvanome...

    Text Solution

    |

  6. What is a magnet ?

    Text Solution

    |

  7. The susceptibility of a ferromagnetic substance is

    Text Solution

    |

  8. Mention the SI unit of magnetising field.

    Text Solution

    |

  9. The electric flux of a surface enclosing an electric dipole is

    Text Solution

    |

  10. A line joining places of equal declinaiton is called

    Text Solution

    |

  11. Give an example for a ferromagnetic substance.

    Text Solution

    |

  12. The unit of magnetic induction B in SI is :

    Text Solution

    |

  13. Light waves can be polarised as they are

    Text Solution

    |

  14. Which one of the following is true?

    Text Solution

    |

  15. Two monochromatic coherent point sources S(1) and S(2) are separated b...

    Text Solution

    |

  16. A source of sound gives five beats per second when sounded with anothe...

    Text Solution

    |

  17. Two identical stringed instruments have a frequency of 100 Hz. The ten...

    Text Solution

    |

  18. Speed of sound in a gas is v and rms velocity of the gas molecules is ...

    Text Solution

    |

  19. A source frequency f gives t beats when sounded with a frequency 200Hz...

    Text Solution

    |

  20. In a parallel arrangement if (R1 gt R2), then the power dissipated in ...

    Text Solution

    |