74. Sparking occurs when a load is switched off because the circuit has high_________?
Correct answer: B. inductance
- A. resistance
- B. inductance
- C. capacitance
- D. impedance
Explanation
An inductive load opposes a sudden change in current and produces a high induced voltage when switched off, which can cause sparking across the contacts. Resistance alone does not create this switching surge.
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