Multiple choice general knowledge science & technology

Which conducts electricity in open circuit?

  1. Capacitor

  2. Transformer

  3. Thermistor

  4. Inductor

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A Correct answer
Explanation

In an open circuit, a capacitor can conduct electricity briefly during the charging phase as electrons move onto and off its plates. Transformers need closed circuits for induction, thermistors are resistors, and inductors require closed circuits for current flow. Only a capacitor allows momentary electron flow.