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Which of the following can NOT be used to store an electrical charge?

  1. Capacitor

  2. Coil

  3. Fuse

  4. Leyden jar

The correct answer is: Capacitor

A capacitor is specifically designed for storing an electrical charge, making it the only incorrect option in this list. A coil, also known as an inductor, possesses capacitance but is not designed for storing charges. A fuse works by melting a conductor and disrupting the flow of current, which is different from storing a charge. A Leyden jar is a type of capacitor that stores electrical energy in the form of an electrostatic field, making it the opposite of what the question is asking for.