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A coil of N turns and area A is placed in a uniform transverse magnetic field B in such a way that vecA and vecB are parallel. If the plate in turned through 180^@ about its one of the diameter in 2 seconds then the (i) change of magnetic flux through the coil is ? (ii) rate of change of flux is the coil is ? |
Answer» <html><body><p></p><a href="https://interviewquestions.tuteehub.com/tag/solution-25781" style="font-weight:bold;" target="_blank" title="Click to know more about SOLUTION">SOLUTION</a> :`Deltaphi=phi_2-phi_1` <br/> `=NBA (<a href="https://interviewquestions.tuteehub.com/tag/cos-935872" style="font-weight:bold;" target="_blank" title="Click to know more about COS">COS</a> theta_2-costhata_1)` <br/> `= NBA(cos180^@-cos0)` <br/> =NBA[-1-1] <br/> =-2NBA <br/> (ii)Rate of charge of flux is <br/> `(Deltaphi)/(Deltat)=(-2NBA)/(<a href="https://interviewquestions.tuteehub.com/tag/2-283658" style="font-weight:bold;" target="_blank" title="Click to know more about 2">2</a>)` <br/> =-NBA</body></html> | |