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Electrical Machines
The working principle of transformer depends on
Amperes law.
Coulombs law.
Faradays law of electromagnetic induction.
Newtons law.
Amperes law.
Coulombs law.
Faradays law of electromagnetic induction.
Newtons law.
Answer
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Related Question
Electrical Machines
The constant losses in transformer is/are
copper loss.
hysteresis loss.
both 2 and 3.
eddy current loss.
copper loss.
hysteresis loss.
both 2 and 3.
eddy current loss.
Answer
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Electrical Machines
In which of the following DC Motor the ratio of starting torque to full load torque is minimum?
Differential compound motor.
Shunt motor.
Cumulative compound motor.
Series motor.
Differential compound motor.
Shunt motor.
Cumulative compound motor.
Series motor.
Answer
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Electrical Machines
The torque developed in IM is nearly proportional to
1 / V2.
V.
V2.
1 / V.
1 / V2.
V.
V2.
1 / V.
Answer
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Electrical Machines
In a DC Motor 3 point starter is used to
provide protection against Low-Voltage.
provide overload protection.
limit the starting current to a safer value.
all of above.
provide protection against Low-Voltage.
provide overload protection.
limit the starting current to a safer value.
all of above.
Answer
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Electrical Machines
Which of the following statements is/are correct statements?
EMF per turn in HV winding is less than EMF per turn in LV winding
EMF per turn in HV winding is more than EMF per turn in LV winding
All of these
EMF per turn in both the windings are equal
EMF per turn in HV winding is less than EMF per turn in LV winding
EMF per turn in HV winding is more than EMF per turn in LV winding
All of these
EMF per turn in both the windings are equal
Answer
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