A bar 1.99 m long pivots in a vertical plane about one end. The first 0.63 m of this rod is made of nonconducting material, but the outer part are…

A bar 1.99 m long pivots in a vertical plane about one end. The first 0.63 m of this rod is made of nonconducting material, but the outer part are made of iron (see Figure). The apparatus is within a uniform 1.7 T magnetic field oriented at right angles to the plane in which the bar rotates. At what angular speed would you need to rotate this bar to generate a potential difference of 15.6 V between the ends of the iron segment? Express the answer with two decimal places.

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