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AP EAMCET202017 Sep 2020Morning ShiftPhysicsAlternating CurrentActual

Why (220 ~V ) AC is more dangerous than (220 ~V ) DC?

Options

  1. AThe DC attracts
  2. BPeak voltage for ( AC ) is much larger
  3. CThe body offers less resistance to AC
  4. DDue to some other reason

Correct answer

B. Peak voltage for ( AC ) is much larger

Step-by-step solution

Rms value of AC, (V_ rms =220 ~V ) Peak value of AC, (V₀= 2 V_ rms = 2 220=311 ~V ) (V_ D C =220 ~V ) Since, peak value of (220 ~V AC ) is (311 ~V ) which is much more than 220 DC. Hence, (220 ~V ) AC is more dangerous than (220 ~V ) DC.

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