Electric Circuits
Emf induced in a coil rotating in a uniform magnetic field will be maximum when the

 flux linking with the coil is maximum.
 rate of change of flux linkage is maximum.
 rate of change of flux linkage is minimum.
 rate of cutting flux by coil sides is minimum.

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Electric Circuits
A certain network consists of large number of ideal linear resistances, one of which is designated as R and two constant ideal source. The power consumed by R is P1 when only the first source is active and P2 when only second source is active. In both sources are active simultaneously then the power consumed by R is

 √P1 ± √P2.
 (√P1 ± √P2)2.
 (P1 ± P2 )2.
 P1 ± P2 .

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