Why does a resistor resist current?
// WHAT YOU WILL LEARN
Electrons collide with atoms and lose energy as heat; Ohm's law V = I × R.
// LESSON NOTES
Why does a resistor resist current? ⚡
Inside it, electrons crash into atoms and lose energy as heat — so LESS current flows through the whole circuit.
Ohm's law: V = I × R → more resistance = less current.
That's why every LED needs one. Remove it… POP. 💥
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