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Electric Circuits

Electric Circuits
Air gap flux density is of the order of

 0.75 - 0.8 T.
 0.85 - 0.9 T.
  0.65 - 0.9 T.
  0.35 - 0.5 T.

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Electric Circuits
To obtain high efficiency, network is designed with which of the following?

 Low Q factor
 High Q factor
 Unity Q factor
 Zero Q factor

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Electric Circuits
The greater the internal resistance of a cell

 the lesser the emf.
 the lesser the terminal voltage.
 the greater the terminal voltage.
 the greater the emf.

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Electric Circuits
A load is connected to an active network. At the terminals to which the load is connected, RTH = 10 Ohm, VTH = 60V. Then maximum power supplied to the load is

 60W.
 180W.
 360W.
 90W.

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Electric Circuits
Four capacitors each of 40 µF are connected in parallel, the equivalent capacitance of the system will be

 160 µF
 40 µF
 5 µF
 10 µF

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Electric Circuits
The value of E within the field due to a point charge can be found with help of

 Lenzs law.
 Kirchhoffs law.
 Faradays law.
 Coulombs law.

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