Which row of the table shows two correct equations that can be used to calculate the current I I\,I through a filament lamp?
| Equation 1 | Equation 2 | |
|---|---|---|
| A | I=V÷RI = V \div RI=V÷R | I=P÷VI = P \div VI=P÷V |
| B | I=R÷VI = R \div VI=R÷V | I=V÷PI = V \div PI=V÷P |
| C | I=V÷RI = V \div RI=V÷R | I=P×VI = P \times VI=P×V |
| D | I=V×RI = V \times RI=V×R | I=P÷VI = P \div VI=P÷V |
Row A
Row B
Row C
Row D
31 exam-style questions on Edexcel GCSE Physics 10.3 Electrical energy and power. Each one has a worked solution and a mark scheme showing where the marks go.