Answers

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Across
  1. 4. the tendency of an electrical conductor to oppose a change in the electric current flowing through it
  2. 7. the terminal potential difference when no current flows
  3. 8. a passive electronic component that temporarily stores energy in a magnetic field when electric current flows through the coil
  4. 9. a device that transfers electric energy from one alternating-current circuit to one or more other circuits, either increasing or reducing the voltage
  5. 10. a piece of magnetic material, such as soft iron, placed inside the windings of an electromagnet or transformer to intensify and direct the magnetic field
Down
  1. 1. the total resistance of electrical equipment to alternating current
  2. 2. a phenomenon that occurs when the matching vibrations of another object increase the amplitude of an object's oscillations
  3. 3. electromagnetic radiations with a frequency ranging between 300 MHz to 300 GHz
  4. 5. a rotary electrical switch that periodically reverses the direction of the current between the rotor and the external circuit
  5. 6. one or more turns of wire that forms a continuous coil through which an electric current can pass