A block of pure silicon at 300 K has a length of 10 cm and an area of 1.0 cm 2 . A…
Physics · Class 12 · CBSE — Current Electricity
A block of pure silicon at 300 K has a length of 10 cm and an area of 1.0 cm2. A battery of emf 2 V is connected across it. The mobility of electrons is 0.14 m2 V–1 s–1 and their number density is 1.5 × 1016 m–3. The electron current is
- 6.72 × 10–4 A
- 6.72 × 10–5 A
- 6.72 × 10–6 A
- 6.72 × 10–7 A
Answer
(D) 6.72 × 10 –7 A
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