Electrical Machines When maximum flux density is constant, the eddy current losses are proportional to V f f2 V2 V f f2 V2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The principle of dynamically induced emf is utilized in choke. transformer. thermocouple. generator. choke. transformer. thermocouple. generator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines It is advisable to start a DC series motor with some load to Limit the current. Limit the flux. Limit the speed. Avoid sparking. Limit the current. Limit the flux. Limit the speed. Avoid sparking. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following induction motor has the highest starting torque? Slip ring induction motor. None of these Same in both induction motors. Squirrel cage induction motor. Slip ring induction motor. None of these Same in both induction motors. Squirrel cage induction motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following methods are used to control the speed of DC motors is armature circuit resistance control All of these supply voltage control field current control armature circuit resistance control All of these supply voltage control field current control 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/ 4Sa PZL/4Sa² PZL/4Sp² PZL/4S PZL/ 4Sa PZL/4Sa² PZL/4Sp² ANSWER DOWNLOAD EXAMIANS APP
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