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The welding set up is said to have straight polarity when

The welding set up is said to have straight polarity when Correct Answer Work is connected to the positive terminal and the electrode holder to the negative terminal

In arc welding, penetration is minimum for DC – Electrode Positive.

Types and importance of polarity in arc welding

Polarity indicates the direction of current flow in the welding circuit.

Kinds of polarity

  • Straight polarity or electrode negative (DCEN)
  • Reverse polarity or electrode positive (DCEP)


Straight polarity: In straight polarity, the electrode is connected to the negative and the work to the positive terminal of the power source.

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Reverse Polarity: In reverse polarity, the electrode is connected to the positive and the work to the negative terminal of the power source.

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