Problem4.(adsbygoogle = window.adsbygoogle || []).push({});

A total charge of 12mC passes througha cross-sectional area of a nichrome wire in 3.1s.

How many electrons pass through the cross-sectional area in 30.0s? In units of electrons.

Note: What formula should I use?

Assume electrical energy cost $0.080 per k*W*h, and that appliances have a potential difference across them of 113 V.

Problem 16.

Calculate the cost of running an electric oven that draws 26.0A of current for 24hr. In units of $.

Note: How do I do this problem.

Problem 17.

Calculate the cost of running a television with a resistance of 27 ohms for 24hr. In units of $.

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# Homework Help: Electron & Cost Problems

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