Effects & the reasons for their occurence

Q.  Correctly match the items in List 1 to the items in List 2:

List 1

a. Skin  Effect
B. Proximity Effect
C. Ferranti effect
D. Surge impedance

List 2

1. Increase in resistance but decrease in self inductance.
2. Increase in ac resistance.
3. Owing to voltage drop across line inductance due to flow of a charging current.
4. Square root of ratio of line impedance and shunt admittance.

Codes:

   A B C D
- Published on 25 Nov 15

a. 2 1 3 4
b. 1 2 4 3
c. 3 4 2 1
d. 4 3 1 2

ANSWER: 2 1 3 4

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