Home
Class 11
PHYSICS
A steel wire of lenght 0.20 m and unifor...

A steel wire of lenght 0.20 m and uniform cross section `10^(-4) m^2` is tied rigidly at both ends.The temperature of the wire is change from `40^@` to `20^@C` . Calculate the thermal tension in the wire given `alpha= 1.1 xx 10^(3)//""^@C.` and Y `= 2 xx 10^(11)Nm^(2)`

Promotional Banner

Topper's Solved these Questions

  • SUPER MODEL QUESTION PAPER 2

    SUBHASH PUBLICATION|Exercise QUESTION PAPER -2 (FOR PRACTICE) (PART-D)|10 Videos

  • SUPER MODEL QUESTION PAPER 2

    SUBHASH PUBLICATION|Exercise QUESTION PAPER -2 (FOR PRACTICE) (PART-B)|8 Videos

  • SUPER MODEL QUESTION PAPER 1

    SUBHASH PUBLICATION|Exercise QUESTION PAPER -2 (FOR PRACTICE) (PART-A)|1 Videos

  • SYSTEMS OF PARTICLES AND ROTATIONAL MOTION

    SUBHASH PUBLICATION|Exercise NUMERICAL WITH SOLUTIONS|34 Videos

Similar Questions

Explore conceptually related problems

A steel wire of length 0.20m and uniform cross section 10^(-6)m^(2) is tied rigidly at both ends. The temperature of the wire is changed from 40^(@) C to 20^(@)C . Calculate the thermal tension in the wire given alpha =1.1. xx 10^(-5)//.^(@)C and Y=2xx10^(11)Nm^(-2)

Calculate the resistance of a metal wire of length 2 m and area of cross section 1·55 xx 10^(-6) m^(2) , if the resistivity of the metal be 2·8 xx 10^(-8) Omega m ?

A current of 2 A is passing through a metal wire of cross sectional area 2 xx 10^(-6) m^(-2) . If the number density of free electrons in the wire is 5 xx 10^(26) m^(-3) , the drift speed of electrons is (given e = 1.6 xx 10^(-19) C)

A brass wire 1.8 m long at 27^(@)C is held taut with a little tension b/w two rigid supports. If the wire is cooled to a temperature of -39^(@)C , what is the tension developed in the wire, if its diameter is 2.0 mm ? a=2.0xx10^(-5)""^(@)C^(-1)andY=0.91xx10^(11)Pa ?

A wire having length 2.0 m diameter 1.0 mm and resistivity 1.963 xx 10^(-8) Ω m is connected in series with a battery of emf 3V and internal resistance I Ω . Calculate the resistance of the wire and current in the circuit.

A cube of side 0.05 m of a material of conductor is drawn into a wire of thickness 0.20 mm . If the specific resistance of the wire is 10^(-6)Omegam then calculate the resistance of the wire.

A copper wire of 10 ^(-6) m ^(2) area of cross section, carries a current of 2A. If the number of electrons per cubic meter is 8 xx 10 ^(28), calculate the current density and average drift velocity. Given, e 1. 6 xx 10 ^(-19) C)