Electrical Machines On what factors the speed of dc motor depends? Field flux. All of these. Armature current Ia. Applied voltage. Field flux. All of these. Armature current Ia. Applied voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Satisfactory commutation of DC machine requires brushes should be of proper grade and size. smooth, concentric commutator properly undercut. brushes should smoothly run in the holders. All of these brushes should be of proper grade and size. smooth, concentric commutator properly undercut. brushes should smoothly run in the holders. All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If Kh is hysteresis constant, f is supply frequency, Bm maximum flux density in core of transformer, the expression of hysteresis loss in transformer, is given by KhfBm3. KhfBm. Khf2Bm1.6. KhfBm1.6. KhfBm3. KhfBm. Khf2Bm1.6. KhfBm1.6. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole DC generator runs at 750 rpm and generate an emf of 240 V. The armature is wave wound and has 792 conductors. If the total flux from each pole is 0.0145 Wb. What is the leakage co-efficient? 1.5. 1.2. 1.4. 1.8. 1.5. 1.2. 1.4. 1.8. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Dynamic braking can be used for shunt motors. compound motors. series motors. All of these shunt motors. compound motors. series motors. All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC Shunt Motor if the load current increases then field flux decreases increases. decreases. remains constant. decreases increases. decreases. remains constant. ANSWER DOWNLOAD EXAMIANS APP
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