11. The height difference between boiler and storage allowed thermosiphon circulation in this simple large bore primary circuit . 12. Without an ohm meter, you cannot test the transformer, but you can still test the primary circuit . 13. A primary circuit path follows the boundaries of most ovals which is suitable for walking, jogging or cycling. 14. When the spark gap fires, the charged capacitor discharges into the primary winding, causing the primary circuit to oscillate. 15. Usually the gap reignites, and energy in the secondary transfers back to the primary circuit over several more RF cycles. 16. The primary circuit refers to the incomes and products generated and distributed from productive activity ( reflected by GDP ). 17. As stated above, the water in the primary circuits is kept under a constant elevated pressure to avoid its boiling. 18. _A malfunctioning pump system that supplies cooling water to the primary circuit , which in turn cools down one of the reactors. 19. Two wires run from the transformer into the box and join with the hot and neutral wires of the primary circuit . 20. All doorbell and chime systems receive their power from an existing 120-volt house circuit, often referred to as the primary circuit .
