11. The RF induction coils function in a manner similar to the primary winding in a transformer. 12. At least one manufacturer makes a " zoneless " induction cooking surface with multiple induction coils . 13. Letherby designed an interrupter circuit for use with induction coils for the medical application of electricity. 14. Callan invented the induction coil because he needed to generate a higher level of electricity than currently available. 15. The lamp consisted of a Geissler tube that was excited by a battery-powered Ruhmkorff induction coil . 16. If you have to install an induction coil in the bottom of a laptop, how do you: 17. The end of this torch is placed inside an induction coil supplied with a radio-frequency electric current. 18. The process starts by heating the bar to in less than 60 seconds using high-power induction coils . 19. Bird designed his own interrupter circuit for delivering shocks to patients from a voltaic cell through an induction coil . 20. The induction coil reads the signal and sends it to some type of computer device to recognize the signal.
