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Select the proper Problem-solution combination during Universal motor modified from the DC Series Motor.
| **Problem** | **Solution** |
| 1. Its efficiency will poor due to hysteresis and eddy current losses | 1. Use โ Compensating Winding |
| 2. Power factor of the motor is low due to inductive reactance of the field and armature windings | 2. Use โ Laminated Core Structure |
| 3. The sparking at the brushes will be excessive due to the effect of armature reactance | 3. Use โ Reduced number of turns & Increase it Thickness |
Problem Solution
Its efficiency will poor due to hysteresis and eddy current losses 1. Use โ Compensating Winding
Power factor of the motor is low due to inductive reactance of the field and armature windings 2. Use โ Laminated Core Structure
The sparking at the brushes will be excessive due to the effect of armature reactance 3. Use โ Reduced number of turns & Increase it Thickness
1, 2-2, 3-3
2, 2-3, 3-3
2, 2-3, 3-1
3, 2-1, 3-2
Power factor of the motor is low due to inductive reactance of the field and armature windings 2. Use โ Laminated Core Structure
Quick Summary: Practice and solve "Select the proper Problem-solution combination during Universal motor modified from the DC Series Mo..." for Electrical - Machine. The correct answer is Option C: Power factor of the motor is low due to inductive reactance of the field and armature windings 2. Use โ Laminated Core Structure. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.
Answer:
Option **(c) **