A super conducting loop having an inductance \( L \) is kept in a magnetic field which is vary...

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A super conducting loop having an inductance \( L \) is kept in a magnetic field which is varying with respect to time. If \( \phi \) is the total flux, \( \varepsilon= \) total induced emf, then:
(a) \( \phi= \) constant
(b) \( I=0 \)
(c) \( \varepsilon=0 \)
(d) \( \varepsilon=0 \)
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