Electronic Devices And Circuits

Exercise: Electronic Devices And Circuits

📂 Electronic Devices And Circuits ✅

Questions for: Electronic Devices And Circuits

A sample of N-type semiconductor has electron density of 6.25 x 10¹⁸/cm³ at 300k. If the intrinsic concentration of carriers in this sample is 2.5 x 10¹³/cm³ at this temperature the hole density works out to be

10⁶/cm³

10⁸/cm³

10¹⁰/cm³

10^l2/cm³

Answer: B

No answer description is available. Let's discuss.

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The output V-I characteristics of an Enhancement type MOSFET has

only an ohmic region

only a saturation region

an ohmic region at low voltage value followed by a saturation region at higher voltages.

an ohmic region at large voltage values. Preceded by a saturation region at lower voltages.

Answer: C

No answer description is available. Let's discuss.

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The depletion layer consists of immobile ions.

True

False

Answer: A

No answer description is available. Let's discuss.

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Ohmic range of carbon composition resistors is

10 to 100 ohms

10 to 10 K ohms

10 to 200 ohms

10 to 25 M ohms

Answer: D

No answer description is available. Let's discuss.

📖

Secondary emission results

when temperature of metals is raised to a level above the crystallization temperature

when metals are subjected to strong magnetic fields

when light rays fall on the metal surface

when a high velocity beam of electrons strikes as metal surface

Answer: B

No answer description is available. Let's discuss.

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