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"https://codexery.com/classical-mechanics-and-dynamics/e/classical-mechanics-and-dynamics/power-physics/": {"t": "Power (physics)", "s": "Power is the rate of energy transfer per unit time."}, "https://codexery.com/battery-types/e/battery-types/rechargeable-battery/": {"t": "Rechargeable battery", "s": "Rechargeable batteries can be charged, discharged, and recharged many times.", "i": "https://codexery.com/battery-types/img/battery-types/rechargeable-battery.webp", "c": "WaxPhilosophic · CC BY-SA 4.0"}, "https://codexery.com/electromagnetism/e/electromagnetism/alternating-current/": {"t": "Alternating current", "s": "Electric current that reverses direction and enables efficient power transmission."}, "https://codexery.com/electromagnetism-and-waves/e/electromagnetism-and-waves/inductance/": {"t": "Inductance", "s": "Inductance opposes changes in electric current via electromagnetic induction."}, "https://codexery.com/battery-inventors/e/battery-inventors/alessandro-volta/": {"t": 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