ECE · all questions

Electronic Devices And Circuits
practice.

Practice every MCQ with options. Use Show answers when you want the correct option and solution.

290

Questions

15/15

Page

Pick an option on a question to see the right answer and solution.

Q281

The dynamic resistance of diode is

Select an option to see the answer and solution.

Q282

A crystal diode is used as . . . . . . . .

Select an option to see the answer and solution.

Q283

The position of the intrinsic Fermi level of an undoped semiconductor (E_Fi) is given by:

Select an option to see the answer and solution.

Q284

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

Select an option to see the answer and solution.

Q285

When a positive d.c. voltage is applied to the n-side relative to p-side, a diode is said to be given a

Select an option to see the answer and solution.

Q286

Let β be the short circuit common emitter current gain of a BJT biased in normal active mode. Let I_C be the collector current is this β

Select an option to see the answer and solution.

Q287

Pinch-off voltage for a FET is the drain voltage at which

Select an option to see the answer and solution.

Q288

How does the dynamic resistance of diode vary with temperature?

Select an option to see the answer and solution.

Q289

One easy way of creating biased diode clipping circuits without the need for an additional EMF supply is to use . . . . . . . .

Select an option to see the answer and solution.

Q290

For the n-type semiconductor with n = N_D and

p = \frac{n _{i}^{2}}{N _{D}},

the hole concentration will fall below the intrinsic value because some of the holes

Select an option to see the answer and solution.