Discussion
The effect of line capacitance in which receiving end voltage is more than the sending end voltage at no load is known as:
Answer: C
On a long, lightly loaded or open ended transmission line the charging current of the line capacitance flows through the line inductance and raises the voltage along the line, so that the receiving end voltage is greater than the sending end voltage at no load. This is called the Ferranti effect. The thermal effect is the heating of conductors by current, the induction effect is the induced voltage on neighbouring circuits, and humidity effect is not a line effect. The answer is option C.
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