Electrical Machines If Ke is eddy current constant, Kf is form factor, f is supply frequency, Bm maximum flux density in core of transformer, the expression of eddy current loss in transformer, is given by Kef2KfBm2. Kef2Kf2Bm. KefKf2Bm2. Kef2Kf2Bm2. Kef2KfBm2. Kef2Kf2Bm. KefKf2Bm2. Kef2Kf2Bm2. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC shunt generator working on load, the brushes are moved forward in the direction of rotation, as a result of this, commutation will worsen and terminal voltage will rise. worsen and terminal voltage will fall improve but terminal voltage will fall. improve and terminal voltage will rise . worsen and terminal voltage will rise. worsen and terminal voltage will fall improve but terminal voltage will fall. improve and terminal voltage will rise . ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In travelling cranes for hoisting and lowering which type of motor is preferred? AC slip ring motor. DC series motor. Single phase induction motor. Synchronous motor. AC slip ring motor. DC series motor. Single phase induction motor. Synchronous motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the field winding connection of DC shunt motor is changed motor will not run. It will run in opposite direction. motor will become slow. It will run in same direction. motor will not run. It will run in opposite direction. motor will become slow. It will run in same direction. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When a DC cummulative compound wound motor is loaded Torque increase and speed decrease. Torque decrease and speed increases. Both torque and speed decrease. Torque and speed both increase. Torque increase and speed decrease. Torque decrease and speed increases. Both torque and speed decrease. Torque and speed both increase. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines stepped cores are used in transformers in order to reduce reluctance of core. volume of copper. iron loss. volume of iron. reluctance of core. volume of copper. iron loss. volume of iron. ANSWER DOWNLOAD EXAMIANS APP
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