Home
Class 12
PHYSICS
When a potential difference is applied a...

When a potential difference is applied across the ends of a linear metallic conductor

A

the free electrons are accelrated continously from the lower potential end to the higher potential and of the conductor

B

the free electrons are accelerated continously from the higher potential end to the lower potential end of the conductor

C

the free electrons acqurie a costant drift velocity from the lower potential end to the higher potential end of the conductor.

D

the free electrons are set in motion from their position of rest.

Text Solution

Verified by Experts

The correct Answer is:
3
Promotional Banner

Topper's Solved these Questions

  • CIRCULAR MOTION

    ALLEN|Exercise EXERCISE (J-A)|6 Videos

  • GEOMETRICAL OPTICS

    ALLEN|Exercise subjective|14 Videos

Similar Questions

Explore conceptually related problems

When a potential difference is applied across the ends of a conductor, how is the drift velocity of the electrons related to the relaxation time?

A potential difference is applied across the ends of a metallic wire. If the potential difference is doubled, the drift velocity will

When a potential difference is applied across, the current passing through

When a potential difference of 2 V is applied across the ends of a wire of 5 m length, a current of 1 A is found to flow through it. Calculate (i) the resistance per unit length of the wire, (ii) the resistance of 2 m length of the wire. (iii) the resistance across the ends of the wire if it doubled on itself.

In the experiment of Ohm's law, a potential difference of 5.0 V is applied across the end of a conductor of length 10.0 cm and diameter of 5.00 mm. The measured current in the conductor is 2.00 A. The maximum permissible percentage error in the resistivity of the conductor is :

A graph is plotted between the potential difference (applied across the ends of a conductor) and the current (following through the conductor). The graph is a straight line

A potential difference of 20 volts is applied across the ends of a resistance of 5 ohms. What current will flow in the resistance?

Figure 7.37 shows a network of three resistances. When some potential difference is applied across the network , thermal powers dissipated by A, B and C are in the ratio

A metallic conductor of irregular corss-section is as shown in the figure. A constant potential difference is applied across the ends (1) and (2) . Then:

ALLEN-CURRENT ELECTRICITY-All Questions
  1. If V(AB) = 4V in the given fig are, then resistance chi will be

    Text Solution

    |

  2. For the network of resistance shown in the figure the equivalent resis...

    Text Solution

    |

  3. When a potential difference is applied across the ends of a linear met...

    Text Solution

    |

  4. A current of two amperes is flowing through a cell of e.m.f. 5 volts ...

    Text Solution

    |

  5. 100 cells each of emf 5V and internal resistance 1 Omega are to be arr...

    Text Solution

    |

  6. Two resistance R(1) and R(2) are made of different material. The tempe...

    Text Solution

    |

  7. In the arrangement of resistances shown below, the effective resistanc...

    Text Solution

    |

  8. A potentiometer wire of length 1000 cm has a resistance of 10 ohms. It...

    Text Solution

    |

  9. Electromotive force of a cell is basically a

    Text Solution

    |

  10. A battery of e.m.f. 10 V and internal resistance 0.5 ohm is connected ...

    Text Solution

    |

  11. A galvanometer has resistance G and Current I(g) produces full scale d...

    Text Solution

    |

  12. In a neon discharge tube 2.9 xx 10^(18) Ne^(+) ions move to the right ...

    Text Solution

    |

  13. When a resistance of 2 ohm is connected across terminals of a cell, th...

    Text Solution

    |

  14. Two nonideal batteries are connected in parallel. Consider the followi...

    Text Solution

    |

  15. The current in 8Omega resistance is (as per given circuit)

    Text Solution

    |

  16. Assertion: Electric field inside a current carrying wire is zero. Re...

    Text Solution

    |

  17. Assertion: A voltmeter must b e connected in parallel in a circuit and...

    Text Solution

    |

  18. Assertion : Electric field outside the conducting wire which carreis a...

    Text Solution

    |

  19. Assertion:- Kirchhoff's voltage law indicates that field is conservati...

    Text Solution

    |

  20. Assertion: Terminal potential difference of a cell is always less than...

    Text Solution

    |