For the following questions answer them individually
The DC output power across a load of R ohms in a,half wave rectifier with a current flowing of peak value $$ I_m $$, is
The common emitter transistor circuit has
The circuit that provides the best stabilisation of operating point is
In an amplifier the maximum power transfer to the load resistance should be
In a synchronous motor the rotor copper losses, are met by
The change of D.C. excitation of a synchronous motor changes
The advantage of stationary armature of a synchronous machine is
In which of the following motors the stator and rotor fields rotate simultaneously
In a 3-phase synchronous motor , If the direction of its field current is reversed
The back e.m.f. of a synchronous motor depends on