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ISRO EC 2018:Electronics Devices & CIrcuits Booster Quiz 1
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Question 1
Measurement of Hall coefficient enables the determination of:
Question 2
Which of the following parameters of a Silicon Schottky Diode is higher than that of a corresponding PN junction diode?
Question 3
Silicon is not suitable for fabrication of light emitting diodes because it is:
Question 4
A semiconductor is uniformly doped with 
acceptors and 
donors. Let the free electron and hole concentrations be 
and 
respectively. Assume that the semiconductor is at thermal equilibrium and that 100% ionization has taken place. Then which of the following is true?
acceptors and donors. Let the free electron and hole concentrations be and respectively. Assume that the semiconductor is at thermal equilibrium and that 100% ionization has taken place. Then which of the following is true? Question 5
The electrical conductivity of a semiconductor increases when a radiation of a wavelength shorter than 1000 nm is incident on it. The band gap of the semiconductor is :
Question 6
The electron density profile in a piece of semiconductor at equilibrium is such that 
The hole density profile will be such that
The hole density profile will be such that Question 7
Which of the following statements is true?
Question 8
How could Schrodinger’s equation be relevant in the practical design of a Cathode- Ray Tube?
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Mar 1ESE & GATE EC
