Question

Charging reactance of 50 km length of line is 1500 ohm.What is charging reactance for 100 km length

Answer 1

we know,
Charging reactance , $X_C$ is inversely proportional to AC capacitance C. and AC capacitance in Farads is directly proportional to length of charging reactance.

so, $X_C\propto\frac{1}{L}$

given, charging reactance of 50km length of line is 1500 ohms
so, charging reactance of 100 km length of line is 1500/2 = 750 ohms .