Related Questions

সুপরিবাহী পদার্থে Valence Band এবং conduction band-
A আলাদা থাকে
B ওভারল্যাপ থাকে
C অনেক দূরে থাকে
D কোনটিই নয়
The current due to electron flow in conduction band is the hole current in valence band.
A Equal to
B Less than
C Greater than
D Any of the above
He was forbidden to enter the room without his mother’s permission. Here 'forbidden' is a/an -
A Adjective
B Adverb
C Verb
D Noun
For germanium the forbidden energy gap is
A 0.15 eV
B 0.25 eV
C 0.5eV
D 0.7eV
কক্ষ তাপমাত্রায় বিশুদ্ধ সিলিকনের ক্ষেত্রে নিষিদ্ধ শক্তির ব্যবধান কত? (What is the forbidden energy gap for pure silicon at room temperature?)
A 0.3 V
B 0.7 V
C 0.7 ev
D 1.1 eV
Determine the resistance value and tolerance of a resistor that has the following color bands; first band is red, second band is red, third band is orange, and the fourth band is gold
A 220 Ohm, 5%
B 220 Ohm, 10%
C 22,000 Ohm, 5%
D 22, 000 Ohm, 10%
E None of the above
The forbidden gap in an insulator is
A Large
B Small
C Nil
D Any of the above
কোন পদার্থের নিষিদ্ধ ব্যান্ড (Forbidden Band) সবচেয়ে বড়?
A Conductor
B Semiconductor
C Insulator
D Dielectrics
An electron in the conduction band
A Has higher energy than the electron in the valence band
B Has lower energy than the electron in the valence band
C Loses its charge easily
D Jumps to the top of the crystal
Conduction band electrons have more mobility than holes because they
A Are lighter
B Experience collision less frequently
C Have negative charge
D Need less energy to move them

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