正せい極きょく

noun

positive electrode; cathode; positive pole

Technical term in electricity and electronics; refers to the electrode with higher electrical potential. In a battery, it is the cathode during discharge.

• 電でん池ちの正せい極きょくと負ふ極きょくを正ただしく接せつ続ぞくしてください。

  Please connect the positive and negative terminals of the battery correctly.

• LEDは正せい極きょくを長ながい方ほうの足あしに接せつ続ぞくします。

  For an LED, connect the positive electrode to the longer leg.