Electricity - Crossword

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Across
  1. 3. Elements of heating devices such as bread toaster and electric iron are generally made out of this.
  2. 7. SI unit of electric power
  3. 8. Slope of V-I graph gives this.
  4. 9. Resistance offered by a wire of unit length and unit area of cross section.
Down
  1. 1. Device that helps to maintain potential difference across the ends of a conductor
  2. 2. Rate at which electrical energy is consumed or dissipated
  3. 3. Device used to measure electric current
  4. 4. Device used to safeguard electrical devices at home
  5. 5. An ammeter is always connected in --- in an electric circuit
  6. 6. SI unit of potential difference