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A 1.0 m long metallic rod is rotated with an angular frequency of 400 rad s_(1) about an axis normal to the rod passing through its one end. The other end of the rod is in contact with a circular metallic ring. A constant and uniform magnetic field of 0.5 T parallel to the axis exists everywhere. Calculate the emf developed between the centre and the ring. |
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Answer» Solution :Here length of rod l=1.0 m, angular FREQUENCY `omega = 400 s^(-1)` and UNIFORM magnetic field B = 0.5T. `therefere` Induced EMF DEVELOPED `|varepsilon| =1/2 Bomegal^(2) = 0.5 xx 400 xx (1)^(2)/2=100V.` |
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