Determine the Geometrical Mean Radius (GMR) of the conductors with the arrangements shown in Fig. 3.2. The Geometrical Mean Radius (GMR) of each conductor is \(r^{\prime}\).

1) \(\sqrt[8]{2 r^{6} D^{6}}\)

2) \(\sqrt[4]{2^{3} r^{\prime 3} D}\)

3) \(\sqrt[4]{2^{2} r^{\prime} D}\)

4) \(\sqrt[8]{2 r^{\prime 2} D^{6}}\)

Transcribed Image Text:

D -D- D D