In a machine that temperature changes from 20 ∘C up to 120 ∘C a tungsten wire...

In a machine that temperature changes from 20 ∘C up to 120 ∘C a tungsten wire filament 13.0 cm long with a diameter of 1.20 mm will be used. The wire will carry 11.0 A at all temperatures ( Resistivity of tungsten at 20 ∘C is 5.25×10^−8Ω⋅m , the temperature coefficient of resistivity at 20 ∘C is 0.0045 ∘C^−1 ).

A-)Calculate the maximum electric field in this filament?

B-)Calculate the resistance of the filament with that field?

C-)Calculate the maximum potential drop over the full length of the filament?

Expert Solution

genius_generous answered 2 years ago

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