A feeder with reactance of 0.2 pu has a sending-end voltage of 1.2 pu If the reactive power supplied at the receiving end of the feeder is 0.3 pu, the approximate voltage drop in the feeder will be

The calculations performed using short-line approximate model instead of nomial-π model for a medium length transmission line delivering lagging load at a given receiving-end voltage always result in higher.
1. sending-end current.
2. sending-end power.
3. regulation.
4. Efficiency.
Which of these statements are correct ?

As the frequency of supply system increased, the charging MVAR

Receiving end voltage for long transmission line under no load condition is

For a given receiving end voltage in a long transmission line, sending end voltage is more than the actual calculated by

A short line with R/X ratio 1, the zero regulation is obtained when the power factor of the load is

If the line is loaded with the surge impedance, the receiving end voltage

The transfer of reactive power over a line mainly depends upon

With 100% series compensation of lines

Line constant of a transmission line are