Current Electricity (NEST (National Entrance Screening Test) Physics): Questions 1 - 1 of 1

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Question number: 1

» Current Electricity » Temperature Dependence of Resistance

Appeared in Year: 2013

MCQ▾

Question

A cylindrical steel rod of length Equation and thermal conductivity Equation is welded end to end to a copper rod of thermal conductivity Equation and of the same area of cross section but Equation long. One end of the copper rod is maintained at Equation . The free end of the steel rod is maintained at a temperature of Equation . Assuming that the rods are perfectly insulated, the temperature of the junction is –

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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