Author Question: A nichrome wire and an aluminum wire, each with the same initial resistance, have the same change in ... (Read 94 times)

crobinson2013 · **on:** Aug 6, 2020

Question 1

A light bulb is rated at 30 W when operated at 120 V. How much charge enters (and leaves) the light bulb in 1.0 min?

◦

17 C

◦

15 C

◦

14 C

◦

13 C

◦

60 C

Question 2

A nichrome wire and an aluminum wire, each with the same initial resistance, have the same change in resistance when heated separately. (ρ_Al = 2.82 × 10⁻⁸Ω⋅ m; α_Al = 3.9 × 10⁻³ / °C; ρ_nichrome = 1.50 × 10⁻⁶Ω⋅ m; α_nichrome = 0.40 × 10⁻³ / °C.) The ratio of the temperature change of the nichrome wire to the temperature change of the aluminum wire is

◦

0.019.

◦

0.10.

◦

0.18.

◦

9.8.

◦

53.

Yixagurpuldink · **Reply #1 on:** Aug 6, 2020

A FREE account is required to view all solutions!

Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.

Answer Preview

Only 25% of students answer this correctly