Question

Why does voltage across the capacitor increae and then decrease?

Answer 1

Answer:

hey mate

this is your answer:-In medium and long transmission lines, if the Capacitive VAR dominates over the Inductive VAR during no load or lightly loaded conditions, the Receiving end Voltage is found to be more than the Sending end Voltage. ... Usually this effect is prominent when a long transmission line is lightly loaded/unloaded....

Answer 2

The reactance offered by the capacitor( essentially, the resistance) is inversely proportional to the frequency of voltage applied. If the frequency of applied voltage is decreased, the reactance increase. Consequently, Current=Voltage/Reactance, decreases.