Home
Class 12
PHYSICS
The voltage V and current I v graphs for...

The voltage V and current I v graphs for a conductor at two different temperatures `T_(1) and T_(2)` are shown in the figure. The relation between `T_(1) and T_(2)` is

A

`T_(1) gt T_(2)`

B

`T_(1) lt T_(2)`

C

`T_(1) = T_(2)`

D

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

Text Solution

Verified by Experts

The correct Answer is:
A
The slope of V-I graph gives the resistance fo a conductor at a given temperature. From the graph, it follows that resistance of a conductor at temperature `T_(1)` is greater than at temperature `T_(2)`. As the resistance of a conductor is more at higher temperature and less at lower temperature, hence `T_(1) gt T_(2)`
Promotional Banner

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    NCERT FINGERTIPS|Exercise Drift Of Electrons And The Origin Of Resistivity|2 Videos

  • CURRENT ELECTRICITY

    NCERT FINGERTIPS|Exercise Limitations Of Ohm'S Law|4 Videos

  • CURRENT ELECTRICITY

    NCERT FINGERTIPS|Exercise Electric Current In Conductors|2 Videos

  • COMMUNITCATION SYSTEMS

    NCERT FINGERTIPS|Exercise HOTS|10 Videos

  • DUAL NATURE OF RADIATION AND MATTER

    NCERT FINGERTIPS|Exercise Assertion And Reason|15 Videos

Similar Questions

Explore conceptually related problems

The V - i graph for a conductor at temperature T_(1) and T_(2) are as shown in the figure. ( T_(2) - T_(1)) is proportional to

The V - I graphs for a conductor at temperature T_1 and T_2 are shown in the figure (T_2-T_1) is proportional to

The V-i graph for a conductor at temeratures T_1 and T_2 are as shown in the figure. (T_2 - T_1) is alphaortional to. .

The V-l graph for a conductor at temperatures T_(1) " and " T_(2) are as shown in the figure. The term T_(2) -T_(1) is proportional to

The current - voltage graphs for a given metallic wire at two different temperatures T_1 and T_2 are shown in the figure. The temperature T_2 is greater than T_1 .

The current-coltage graphs for a given metallic wire at two differenct tempeature T_(1)" and "T_(2) are shown in the figure. Which one is higher, T_(1)" or "T_(2)

Assertion : Current versus potential difference (i-V) graph for a conductor at two different temperatures T_(1) and T_(2) is shown in figure. Hence T_(1)gt T_(2) . Reason : Resistance of a conductor increases with rise in temperature.