Electrical Machines Eg (generated emf) and Eb (back emf) both are same. different. none of above. changes. same. different. none of above. changes. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Reversing the direction of rotation of split phase motors is done by reversing the terminals of main winding. reversing the terminals of starting winding. All of these interchanging the capacitor from starting winding to main winding or vice versa. reversing the terminals of main winding. reversing the terminals of starting winding. All of these interchanging the capacitor from starting winding to main winding or vice versa. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In circle diagram for induction motor, diameter of circle represents which of the following ? Line voltage. Rotor current. Slip. Running torque. Line voltage. Rotor current. Slip. Running torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The direction of rotation of conductor of a DC motor can be determined by Fleming's right hand rule. Lenz's law. Ampere law. Fleming's left hand rule. Fleming's right hand rule. Lenz's law. Ampere law. Fleming's left hand rule. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Consider the following statements regarding the magnetization characteristics of a dc generator : 1. It represents the variation of field flux with field current. 2. Variation of open-circuit terminal voltage with field current is independent of speed 3. It is non-linear from zero to rated field current 4. It helps to determine the critical field resistance at a given speed 5. It always starts from the origin Which of these statements are correct ? 1 and 4 1, 2 and 5 3 and 5 2, 3 and 4 1 and 4 1, 2 and 5 3 and 5 2, 3 and 4 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a lap winding dc machine number of conductors are 100 and number of parallel paths are 10. Find the average pitch 10 1 100 50 10 1 100 50 ANSWER DOWNLOAD EXAMIANS APP
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