Question $16$

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A straight $10cm$ wire bent at its midpoint so as to form an angle of $90$ carries a current of $15A.$ It lies in the $xy$ plane in a region where the magnetic field is in the positive $z$ direction and has a constant magnitude of $3\mathrm{.}0mT.$ What is the magnitude of the magnetic force on this wire?

Select one:

a$.3\mathrm{.}2mN$

b$.6\mathrm{.}4mN$

c$.4\mathrm{.}2mN$

d$.2\mathrm{.}1mN$