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Author Question: A nichrome wire and an aluminum wire, each with the same initial resistance, have the same change in ... (Read 87 times)

crobinson2013

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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?

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17 C

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15 C

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14 C

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13 C

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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. (ρAl = 2.82 × 10−8Ω⋅ m; αAl = 3.9 × 10−3 / °C; ρnichrome = 1.50 × 10−6Ω⋅ m; αnichrome = 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.

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0.10.

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0.18.

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9.8.

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53.
Physics for Scientists and Engineers ¦ Serway, Jewett ¦ 9th Edition
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Marked as best answer by crobinson2013 on Aug 6, 2020

Yixagurpuldink

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Reply #1 on: Aug 6, 2020
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.
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crobinson2013

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Reply 2 on: Aug 6, 2020
Wow, this really help

jordangronback

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Reply 3 on: Yesterday
Gracias!

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