Home
Class 12
PHYSICS
Which of the following represents the o...

Which of the following represents the ohm's law ?

A

`V = (l)/(R )`

B

` vec(j) = (1)/( simga ) vec( E )`

C

`vec( j) = (1)/( rho ) vec( E ) `

D

` vec (j) = vec( E ) `

Text Solution

Verified by Experts

The correct Answer is:
3
Promotional Banner

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    AAKASH INSTITUTE|Exercise ASSIGNMENT SECTION-B(OBJECTIVE TYPE QUESTION ))|31 Videos

  • CURRENT ELECTRICITY

    AAKASH INSTITUTE|Exercise ASSIGNMENT SECTION-C(OBJECTIVE TYPE QUESTION ))|3 Videos

  • CURRENT ELECTRICITY

    AAKASH INSTITUTE|Exercise Try Yourself|32 Videos

  • COMMUNICATION SYSTEMS

    AAKASH INSTITUTE|Exercise ASSIGNMENT SECTION D (Assertion-Reason)|10 Videos

  • DUAL NATURE OF RADIATION AND MATTER

    AAKASH INSTITUTE|Exercise ASSIGNMENT (SECTION-D)|10 Videos

Similar Questions

Explore conceptually related problems

Which of the following represents the first law of thermodynamics?

Which of the following graph represent Boyle's law ?

Which of the following graph represents Boyle's law ?

Which of the following curves represents the Henry's law?

Which of the following curves represents the Henry's law ?

Which of the following graphs represents the correct Boyle's law ?

Which of the following curves represent the Henry's law

AAKASH INSTITUTE-CURRENT ELECTRICITY-ASSIGNMENT(SECTION-A(OBJECTIVE TYPE QUESTIONS))
  1. If vec(j) and vec(E ) are current density and electric field respectiv...

    Text Solution

    |

  2. Current density vec(j ) at an area vec( A) = ( 2 hat(i ) + 3 hat(j)...

    Text Solution

    |

  3. Which of the following represents the ohm's law ?

    Text Solution

    |

  4. The ratio of magnitude of current density and magnitude of electric fi...

    Text Solution

    |

  5. Conductivity of a conductor of length L and radius of cross-section r ...

    Text Solution

    |

  6. Resistance of the conductor of length 5m and area of cross -section 4...

    Text Solution

    |

  7. When electric field is applied inside a conductor then free electron ...

    Text Solution

    |

  8. If n,e,A and v(d) are free electron density inside conductor , charge...

    Text Solution

    |

  9. If n ,e,m and tau are free electron density in conductor , charge of ...

    Text Solution

    |

  10. A current of 10 A is maintained in a conductor of cross-section 1 cm^(...

    Text Solution

    |

  11. Two wires A an dB of the same material, having radii in the ratio I : ...

    Text Solution

    |

  12. If mu is the mobility of free electrons inside a conductor , then m...

    Text Solution

    |

  13. A potential difference of 5V is applied across a conductor of length ...

    Text Solution

    |

  14. The SI unit of electron mobility is :

    Text Solution

    |

  15. When electric field inside a conductor is E, mobility of free electron...

    Text Solution

    |

  16. What is the range of resistivity of metallic conductors?

    Text Solution

    |

  17. Wire bond resistances used in resistance boxes are made up of

    Text Solution

    |

  18. A good moderator should

    Text Solution

    |

  19. In a carbon resistor the last band colour is missing. Its tolerance is

    Text Solution

    |

  20. Temperature coefficient of resistance of a wire at 0^(@)C is 0.00125^(...

    Text Solution

    |