A Tungsten wire is 1.50 m long and has a diameter of 1.00 mm. At 20.° C a current of 50. mA flows through the wire. [P 5.6 × 10^-8 ·m; $\alpha$ = 0.0045(C°)^-1]
(a) Determine the potential across the wire.
(b) If the wire temperature increases by 100. C°, what potential is now required to produce a current of 50. mA?

Question

A Tungsten wire is 1.50 m long and has a diameter of 1.00 mm. At 20.° C a current of 50. mA flows through the wire. [P 5.6 × 10^-8 ·m;

\alpha

= 0.0045(C°)^-1]
(a) Determine the potential across the wire.
(b) If the wire temperature increases by 100. C°, what potential is now required to produce a current of 50. mA?

Quizplus · Accepted Answer

The Answer of A Tungsten wire is 1.50 m long and has a diameter of 1.00 mm. At 20.° C a current of 50. mA flows through the wire. [P 5.6 × 10^-8 ·m; $\alpha$= 0.0045(C°)^-1] (a) Determine the potential across the wire. (b) If the wire temperature increases by 100. C°, what potential is now required to produce a current of 50. mA?

A Tungsten Wire Is 1 α\alphaα = 00045(C°)-1] (A) Determine the Potential Across the Wire

A Tungsten Wire Is 1 $\alpha$ = 00045(C°)^-1]
(A) Determine the Potential Across the Wire