Electronics' rhymes with:
electronics, electronics, electronics, tektronix, electronics, microelectronics, tektronix, telectronics, audiotronics, centronics, electronics, endotronics, endotronics', flextronics, microelectronics, photronics, plantronics, tektronix, telectronics, vitronics
Electronics' sounds like:
electronic, electronics, electrons