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This study investigates the relaxation dynamics of T4 DNA transitioning from an electrohydrodynamically compressed globule to a relaxed coil state in polyethylene glycol (PEG) solutions of varying molecular weights. Using an AC electric field to induce globule formation, we analyzed DNA expansion upon field cessation. Higher molecular weight PEG, particularly PEG 20000, markedly prolonged relaxation times and exhibited broader distributions compared to PEG 4000 and PEG 6000. In PEG 20000, exceeding the overlap concentration stabilized multi-core structures and delayed DNA relaxation. These dynamics diverged from simple exponential relaxation due to persistent entanglements and compressed regions. 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