A 4 pole wave wound dc motor having flux per pole of 9.56 X 10-3 Wb contains 460 armature conductors with armature resistance of 0.6 ohm. Calculate the starting current flowing through the armature if the supply voltage is 240 volt.

Electrical Machines
A 4 pole wave wound dc motor having flux per pole of 9.56 X 10-3 Wb contains 460 armature conductors with armature resistance of 0.6 ohm. Calculate the starting current flowing through the armature if the supply voltage is 240 volt.

0.5 Amp.

320 Amp.

400 Amp.

800 Amp.

0.5 Amp.

320 Amp.

400 Amp.

800 Amp.

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Electrical Machines
A shaded pole single phase induction motor can be used for

food mixers

tape recorders

wet grinders

personal computers as cooling fan

food mixers

tape recorders

wet grinders

personal computers as cooling fan

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Electrical Machines
The synchronous speed of an induction motor will be increased by

increasing number of poles.

increasing of frequency.

speed can not be increased.

decreasing of frequency.

increasing number of poles.

increasing of frequency.

speed can not be increased.

decreasing of frequency.

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Electrical Machines
In above question, the output power delivered by generator G1 and G2 will be

5.7 kW, 8.7 kW.

9.6 kW, 12 kW.

9.3 kW, 9.3 kW.

6.3 kW, 9.3 kW.

5.7 kW, 8.7 kW.

9.6 kW, 12 kW.

9.3 kW, 9.3 kW.

6.3 kW, 9.3 kW.

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Electrical Machines
Cross magnetization effects which of the following?

commutation

reduces the terminal voltage

both 2 and 3

reduction in main field flux

commutation

reduces the terminal voltage

both 2 and 3

reduction in main field flux

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Electrical Machines
In case the conditions for maximum power for DC motor are established, the efficiency of the motor will be

Around 90 %

Any where between 75 % and 90 %.

Around 100 %.

Less than 50 %

Around 90 %

Any where between 75 % and 90 %.

Around 100 %.

Less than 50 %

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Electrical Machines

Electrical Machines A 4 pole wave wound dc motor having flux per pole of 9.56 X 10-3 Wb contains 460 armature conductors with armature resistance of 0.6 ohm. Calculate the starting current flowing through the armature if the supply voltage is 240 volt.

Electrical Machines A shaded pole single phase induction motor can be used for

Electrical Machines The synchronous speed of an induction motor will be increased by

Electrical Machines In above question, the output power delivered by generator G1 and G2 will be

Electrical Machines Cross magnetization effects which of the following?

Electrical Machines In case the conditions for maximum power for DC motor are established, the efficiency of the motor will be

Electrical Machines
A 4 pole wave wound dc motor having flux per pole of 9.56 X 10-3 Wb contains 460 armature conductors with armature resistance of 0.6 ohm. Calculate the starting current flowing through the armature if the supply voltage is 240 volt.

Electrical Machines
A shaded pole single phase induction motor can be used for

Electrical Machines
The synchronous speed of an induction motor will be increased by

Electrical Machines
In above question, the output power delivered by generator G1 and G2 will be

Electrical Machines
Cross magnetization effects which of the following?

Electrical Machines
In case the conditions for maximum power for DC motor are established, the efficiency of the motor will be