Two coils having self inductances of 10 mH and 40 mH are mutually coupled. The maximum possible mutual inductance is

A capacitor used for power factor correction is single phase circuit decreases

A two branch tuned circuit has a coil of resistance R and inductance L in one branch and capacitance C in the second branch. If R is increased, the dynamic resistance

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Two similar coils have self inductance of 1 mH each. Coefficient of coupling is 0.5. The mutual inductance M is

In a two terminals network the O.C. voltage measured at the given terminals is 100 V and s.c., currents at the same terminals 5 A. If a load of 80 Ω resistance is connected at the terminals, load current is

Two similar coupled coils are connected in series. The total inductance in series aiding connection is 100 mH. If currents is 3 A, the energy stored in magnetic field is

The poles with greater displacement from the real axis correspond to