STANDARDPhysics-Semiconductors
STANDARD Physics Energy Bands MCQ Question
Type: MCQ-numerical-Medium
For germanium crystal, the forbidden energy gap in joules is
A
1.12 × 10⁻¹⁹
B
1.76 × 10⁻¹⁹
C
1.6 × 10⁻¹⁹
D
zero
Correct Answer
Option A
Detailed Explanation
For Ge, E₉ = -0.7 eV = 0.7 × 1.6 × 10⁻¹⁹ J = 1.12 × 10⁻¹⁹ J
Found an issue with this question?
Related Questions
More from Semiconductors
A transistor is a current operating device because the action of transistor is controlled by the charge carriers. Base current is very much larger tha...
2019Physics
A pure semiconductor has equal electron and hole concentration of 10¹⁶ m⁻³. Doping by gallium increases nₕ to 5×10²² m⁻³. Then, the value of nₑ in the...
2019Physics
A semiconductor has an electron concentration of 8×10¹³ per cm³ and a hole concentration of 5×10¹² per cm³. The electron mobility is 25000 cm²V⁻¹s⁻¹ a...
2017Physics