Electrical Machines A single-phase transformer has its maximum efficiency at 60 percent of full load. At full load copper loss will be more than core loss. zero. less than core loss. equal to core loss. more than core loss. zero. less than core loss. equal to core loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC generator, if P be the number of poles and N be the rpm of the rotor, then frequency of magnetic reversals will be PN/120. PN/3000. PN/2. PN/60. PN/120. PN/3000. PN/2. PN/60. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a DC machine having P no of pair of pole pairs, Z no of conductors having length L of resistivity ρ and cross section S are arranged. what is the armature resistance? PZL/4S PZL/4Sp² PZL/4Sa² PZL/ 4Sa PZL/4S PZL/4Sp² PZL/4Sa² PZL/ 4Sa ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The slip of an induction motor normally does not depend on which of the following? Shaft torque. Synchronous speed. Core loss component. Rotor speed. Shaft torque. Synchronous speed. Core loss component. Rotor speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generator, the electricity produced in armature is AC. armature is not present in DC generator. None of these DC. AC. armature is not present in DC generator. None of these DC. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a transformer, hysteresis and eddy current losses depend upon maximum flux density supply frequency load current both 2 and 3 maximum flux density supply frequency load current both 2 and 3 ANSWER DOWNLOAD EXAMIANS APP
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