Power Systems
A cable has the following characteristics, L = 0.201 µH/m and C = 196.2 pF/m. The velocity of wave propagation through cable is

 159.24 m/s
 32 m/s
 0.0312 m/s
 159.24 m/µs

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Power Systems
The value of off diagonal elements is

 sum of admittances connected at bus j
 which is connected between bus i and bus j with positive sign
 which is connected between bus i and bus j with negative sign
 sum of admittances connected at bus i

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