The table shows the charge that flows through four appliances and the time for which each one is switched on.
Table
| Appliance | Charge (C) | Time |
|---|---|---|
| Kettle | 3900 | 5.0 minutes |
| Toaster | 1200 | 120 s |
| Hairdryer | 2160 | 3.0 minutes |
| Iron | 6300 | 0.20 hours |
Which appliance has the largest current?
The iron, with a current of 525 A525\ \text{A}525 A
The hairdryer, with a current of 720 A720\ \text{A}720 A
The kettle, with a current of 13 A13\ \text{A}13 A
The toaster, with a current of 10 A10\ \text{A}10 A
43 exam-style questions on OCR GCSE Physics 3.1 Static and charge, covering 3.1.1 Positive and negative charge, 3.1.2 Static electricity and forces between charged objects, 3.1.3 Electron transfer and static electricity, 3.1.4 Electric fields, 3.1.5 Current as a flow of charge, 3.1.6 Current in a single closed loop, and 3.1.7 Charge, current and time. Each one has a worked solution and a mark scheme showing where the marks go.