21.10.2015 2010 级 2A1 班 小组成员: 李灵 张菲弛 王思依 黄明佳 Promotion Plan On Christmas Day.
Practical Electricity. Recap… 5 important formulae: 1. 2. 3. 4. 5. Q = Charge (Coulomb) I = Current (Ampere) t = time (second) V = Voltage or potential.