Static
Ohm’s law
Energy bill
Practice
🎈 Rub on hair
Reset
Balloon and hair start neutral: equal + and − charges.
Voltage V
Resistance R (Ω)
V = I × R. More voltage pushes more current; more resistance slows it down.
Hours per day
Energy (kWh) = power (kW) × hours. Ontario electricity costs roughly 10–15¢ per kWh.