Read the definition and identify the electrical term before the timer expires. More difficult questions get more time and smaller charge penalties.
⚡Start at 100% charge. Misses reduce charge by 20–30% depending on difficulty.
⏱15 / 20 / 25 seconds. Longer or harder items receive a larger time window.
＋Quick-answer bonus: answer inside the early window to recover 10%, capped at 100%.