Power Systems
For a 500 Hz frequency excitation, a 100 km long power line will be modelled as

 medium transmission line
 any of the above
 shunt capacitor
 long transmission line

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Power Systems
In coal fired thermal power stations, what are the electrostatic precipitators used for?

All of these
 To remove dust particles setting on the bus bar conductors in the station switch yard
 To keep the air heaters clean
 To collect the dust particles from the flue gases

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