1.

  The magnetic flux linked with coil, in weber is given by the equation, \[\varphi =5{{t}^{2}}+3t+16\]. The induced emf in the coil in the fourth second is                                                              [Pb. PMT 2004]

A.            10 V                                         
B.            30 V
C.            45 V                                         
D.            90 V
Answer» B.            30 V


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