Across
- 4. The positive terminal of a battery is marked with this symbol
- 6. Device that stores electrical energy chemically
- 9. Energy is produced by harnessing the Power of Sun
- 10. A damaged cable may expose a live
- 12. kWh is unit of
- 15. Colour of earthing wire is
- 17. Material used as the conducting core of most wires
- 18. The opposition a material offers to the flow of electricity. It is measured in Ohms (Ω)
- 19. Materials that hold back flow of electric current
- 21. Flow of electrons through a conductor is called
Down
- 1. Potential difference is also known as
- 2. P in UPS stands for
- 3. A safety device containing a thin wire that melts and breaks the circuit if the current becomes dangerously high, preventing fires or equipment damage
- 5. Energy obtained from flowing water
- 7. Device that automatically trips during overload
- 8. Voltage is stepped up/down using
- 11. A complete path through which current flows
- 13. A device that converts mechanical energy into electrical energy
- 14. A in AC current stands for
- 16. A condition where current flows through an unintended path
- 20. Safety procedure used to isolate energy before maintenance