Questions
Resistance of tungsten wire at 1500C is . Its resistance temperature coefficient is 0.00450C. The resistance of this wire at 5000C will be
detailed solution
Correct option is C
R150R500 = 1+α1501+α500. Putting R150=133Ωα=0.0045/0C, we get R500=258 ΩTalk to our academic expert!
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