A. Remains unchanged
B. Decreases
C. Increases
D. Becomes infinite
Answer: C. Increases
Explanation:
Effect of Earth on Capacitance of Transmission Line:
In Transmission Line, two types of capacitance exist:
c=πε0/ln(D/r)
Where D = Separation between the go and Return conductor
r = Radius of conductor
From the above value of capacitance, we observe that the capacitance is inversely proportional to the distance (D) hence capacitance of the conductor has increased due to the effect of Earth.
Explanation:
Effect of Earth on Capacitance of Transmission Line:
In Transmission Line, two types of capacitance exist:
- The first one is the capacitance between the phase conductors and the second one is shunt capacitance between the conductor and the earth.
- The capacitance between the phase conductors is not only dependent on conductor spacing, the radius of conductor, and height of conductor from the ground rather it is also influenced by the earth.
c=πε0/ln(D/r)
Where D = Separation between the go and Return conductor
r = Radius of conductor
From the above value of capacitance, we observe that the capacitance is inversely proportional to the distance (D) hence capacitance of the conductor has increased due to the effect of Earth.