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**1. Homework Statement**

A wire is bent into three circular segments each of radius r=9.2 cm. each segment is a quadrant of circle, ab lying in the xy plane, bc, in the yz plane, and ca lying in the zx plane. If a uniform magnetic field points in the positive x direction, what is in volts the magnitude of the emf developed in the wire when B increases at the rate of 3.4 mT/s?

http://edugen.wiley.com/edugen/courses/crs1141/art/images/c31/nw0500-n.gif

**2. Homework Equations**

so what i used was faraday's law and lenz's law by using the formula

[tex]\epsilon[/tex]=d(B A)/dt

and then since area (A) is constant you can bring it out. and area would equal 1/4[tex]\pi[/tex]r[tex]^{2}[/tex] and the dB/dt is given. the only problem is that i dont know what to do with the components as you have the pieces on all three axis and how wood i deal with each component?