Electrical

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Across
  1. 2. A basic unit of capacitance.
  2. 5. It is used to make contact with a nonmetallic part of a circuit.
  3. 6. The practical unit of measuring the flow of circuit.
Down
  1. 1. Sound capable of being heard by the human ear.
  2. 3. frequency A frequency corresponding to an audible sound signals.
  3. 4. An instrument used for measuring current flow.