electrical

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Across
  1. 2. Prevents electrical flow, e.g. rubber and plastic
  2. 4. A metal which is a good conductor of electricity
  3. 6. Acid found in a car battery
  4. 8. 20amp blade fuse colour
  5. 9. AC, ____________ current
Down
  1. 1. DC, ____________current
  2. 3. Battery terminal which should be disconnected first
  3. 5. A variable resistor
  4. 7. Electrical power rating