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In submerged arc furnaces, the power is controlled by:
  • a)
    Varying the spacing between the electrodes.
  • b)
    Varying the voltage applied to the electrodes.
  • c)
    Either (a) or (b).
  • d)
    Varying the arc length.
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
In submerged arc furnaces, the power is controlled by:a)Varying the sp...
In submerged arc furnaces, the power is controlled by
1. By varying the length of the arc by raising or lowering the electrodes thereby varying the resistance of the arc
2. By varying the applied voltage by the use of tappings provided on the primary side of furnace transformer
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In submerged arc furnaces, the power is controlled by:a)Varying the spacing between the electrodes.b)Varying the voltage applied to the electrodes.c)Either (a) or (b).d)Varying the arc length.Correct answer is option 'C'. Can you explain this answer?
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