Home
Class 12
PHYSICS
The I-V characteristics of a metal wire ...

The I-V characteristics of a metal wire at two different temperatures ( `T_(1)` and `T_(2)` ) are given in the adjoining figure. Here, we can conclude that

A

`T_(1)gtT_(2)`

B

`T_(1)ltT_(2)`

C

`T_(1)=T_(2)`

D

`T_(1)=2T_(2)`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • QUESTION PAPER 2012

    WB JEE PREVIOUS YEAR PAPER|Exercise Subject: Physics|38 Videos

  • QUESTION PAPER 2011

    WB JEE PREVIOUS YEAR PAPER|Exercise PHYSICS|39 Videos

  • QUESTION PAPER 2013

    WB JEE PREVIOUS YEAR PAPER|Exercise Category-III|5 Videos

Similar Questions

Explore conceptually related problems

At two different temperature T_(1) and T_(2), (T_(2) gt T_(1)) , draw two PV-P graphs for a definite amount of an ideal gas.

Activation energy (E_(a)) and rate constant (k_(1) and k_(2)) of a chemical reaction at two different temperatures (T_(1) and T_(2)) are related by -

Pressure (P) vs. density (D) curve for an ideal gas at two different temperatures T_1 and T_2 is shown below . Identify the correct statement about T_1 and T_2 .

(i) Plotting V vs T for a given mass of an ideal gas at two different fixed pressures P_(1) and P_(2) gives two straight lines, one of which corresponds to P_(1) and the other corresponds to P_(2) . If P_(1) is greater than P_(2) , then which one of thes straight lines will make a larger angle with the T-axis? (ii) Plotting P vs T for a given mass of an ideal gas at two different fixed volumes V_(1) and V_(2) gives two straight lines, one of which corresponds to V_(1) and the other corresponds to V_(2) . if V_(1) is greater than V_(2) , then which one of these straight lines will make a larger angle with the T-axis?

Activation energy ( E_a ) and rate constants ( k_1 and k_2 ) of a chemical reaction at two different temperature ( T_1 and T_2 ) are related by

Explain why two bodies at different temperature T_(1) and T_(2) if brought in thermal contact do not necessarily settle to the mean temperature T_(1)+T_(2)//2 .

Write down the Arrhenius equation relating the rate constant of reaction with temperature , mentioning what the terms indicate. If k_(1) and k_(2) be the rate constant of a reaction at temperature t_(1)^(@)C and t_(2)^(@)C , respectively, find out the relation between k_(1) ,k_(2) and t_(1) and t_(2) . Given that the activation energy (E_(a)) of the reaction remains unchanged within the temperature range mentioned. The rate constant of a reaction at 400K and 500K are 0.02s^(-1) and 0.08s^(-1) respectively . Determine the activation energy (E_(a)) of the reaction.

Figure shows graphs of pressure versus density for an ideal gas at two temperatures T_1 and T_2 . Which is correct:

The length of a metal wire is L_1 , when the tension is T_1 and l_2 when the tension is T_2 . The unstretched length of the wire is

The pressure p, volume V and temperature T for a certain gas are related by p = (AT - BT^(2))/V , where A and B are constants. The work done by the gas when the temperature changes from T_(1) to T_(2) while the pressure remains constant, is given by

WB JEE PREVIOUS YEAR PAPER-QUESTION PAPER 2012-Subject: Physics
  1. The decimal number equivalent to a binary number 1011001 is

    Text Solution

    |

  2. The frequency of the first overtone of a closed pipe of length l(1) i...

    Text Solution

    |

  3. The I-V characteristics of a metal wire at two different temperatures ...

    Text Solution

    |

  4. In a slide calipers, (m+1) number of vernier divisions is equal to m n...

    Text Solution

    |

  5. From the top of a tower, 80 m high from the ground, a stone is thrown ...

    Text Solution

    |

  6. A Wheatstone bridge has the resistances 10Omega,10Omega,10Omega and 30...

    Text Solution

    |

  7. An electric bulb marked as 50 W-200 V is connected across a 100 V supp...

    Text Solution

    |

  8. In a mercury thermometer the ice point (lower fixed point) is marked a...

    Text Solution

    |

  9. The magnetic flux linked with a coil satisfies the relation phi=4t^(2)...

    Text Solution

    |

  10. Water is flowing through a very narrow tube. The velocity of water bel...

    Text Solution

    |

  11. If the velocity of light in vacuum is 3xx10^(8)ms^(-1), the time taken...

    Text Solution

    |

  12. A charge +q is placed at the origin of X-Y axes as shown in the figure...

    Text Solution

    |

  13. What current will flow through the 2 KOmega resistor in the circuit sh...

    Text Solution

    |

  14. In a region, the intensity of an electric field is given by vecE=2hati...

    Text Solution

    |

  15. The dimension of angular momentum is

    Text Solution

    |

  16. If vecA=vecB+vecC and vecA,vecB,vecC have scalar magnitudes of 5, 4, 3...

    Text Solution

    |

  17. A particle is travelling along a straight line OX. The distance x (in ...

    Text Solution

    |

  18. A particle is projected from the ground with a kinetic energy E at an ...

    Text Solution

    |

  19. A bullet on penetrating 30 cm into its target loses its velocity by 50...

    Text Solution

    |

  20. When a spring is stretched by 10 cm, the potential energy stored is E....

    Text Solution

    |