In a semiconductor material, both electrons and holes act as charge carriers. A current of 2.4 mA is carried by the flow of 8.5 × 1015 electrons per second in one direction, and a flow of holes in the opposite direction.
What is the rate of flow of holes in the semiconductor? (The magnitude of the charge on both an electron and a hole is 1.6 × 10-19 C)
1.5×1016 s−11.5 \times 10^{16}\text{ s}^{-1}1.5×1016 s−1
6.5×1015 s−16.5 \times 10^{15}\text{ s}^{-1}6.5×1015 s−1
7.0×1015 s−17.0 \times 10^{15}\text{ s}^{-1}7.0×1015 s−1
2.4×1016 s−12.4 \times 10^{16}\text{ s}^{-1}2.4×1016 s−1
15 exam-style questions on OCR GCSE Physics Static and charge. Each one has a worked solution and a mark scheme showing where the marks go.