Problem 5.(adsbygoogle = window.adsbygoogle || []).push({});

A total charge of 12mC passes through a cross-sectional area of a nichrome wrie is 3.1s.

If the number of charges that pass through the cross-sectional area furing the given time interval doubles, what is the resulting current? In units of A.

Note: What formula(s) should I use?

Problem 7.

How long does it take for 7.5 C of charge to pass through a cross-sectional area of a copper wire if I=19A? In units of s.

Note: I don't know where to start?

Problem 11.

A typical color television draws 2.8 A of current when connected across a potential difference of 121V.

What is the effective resistance of the television set? Answer in omega.

Note: What formula(s) should I use?

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# Homework Help: Resistance and current problems

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