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20. A straight wire carrying a 3.00-A current is placed in a uni- QC form magnetic field of magnitude 0.280 T directed perpen
Question 1 5 pts Do problem 28-20a. The current is 2 amps, the magnetic field perpendicular to the current is 0.47 Tesla, and
th 28. In QIC cu 23. Review. A rod of mass 0.720 kg and radius 6.00 cm rests AMT on two parallel rails (Fig. P28.23) that are
d B L Figure P28.23 Problems 23 and 24. 24. Review. A rod of mass m and radius R rests on two paral- slel rails (Fig. P28.23)
Question 2 5 pts Do problems 23 and 24 -- they are the same except that problem 23 has numbers, while problem 24 is all symbo


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