Physics · Arc Welding Principles

What is meant by the term 'open circuit voltage' in the context of arc welding?

Verified Solution4 OptionsUpdated: October 2026👁️1 View

1The transient voltage spike required just to initiate the arc gap
2The maximum absolute safety voltage rating specified for the machine input
3The voltage present across the terminals when no arc is struck and no current flows✓
4The voltage measured dynamically while the welding arc is sustained

Correct answer

The voltage present across the terminals when no arc is struck and no current flows

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