Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoThermal ExpansionMedium2 minQB

PhysicsMediuminteger

A wire just taut at 50°C is clamped rigidly and cooled to 0°C. $A = 1 mm^{2}, Y = 200 GPa, α = 1 0^{- 5}$ per $^{\circ} C$ . Find tension in N .

Answer:

100

Solution:

Prevented thermal strain $= 0.0005. F = A Y α Δ T = (1 0^{- 6}) (2 \times 1 0^{11}) (0.0005) = 100 N$ .

Subject:PhysicsTopic:Heat & ThermoSubtopic:Thermal Expansion

⏱ 2mℹ️ Source: QB

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