ECE :: Exam Questions Paper
-
Consider the following statements
A 4 : 16 decoder can be constructed (with enable i/p) by- Using four 2 : 4 decoders (each with an enable i/p) only
- Using five 2 : 4 decoders (each with an enable i/p) only
- Using two 3 : 8 decoders (each with an enable i/p) only
- Using two 3 : 8 decoders (each with an enable i/p) only
-
If the carrier modulated by a digital bit stream has one of the possible phases of 0°, 90°, 180° and 270°. Then the modulation is called
-
The internal resistance of a current source used in the model of a BJT while analyzing a circuit using BJT is :
-
Consider the network: Impedance of this network as a function of the complex frequency is consists of a certain number of zeros and poles. What is the location of poles?
-
For the circuit shown in the given figure, assuming ideal op-amps, the output corresponding to the given input will be :
-
Consider the following statements:
In a microstrip line- Wavelength
, where eff is the effective dielectric constant and 1 is the free space wavelength. - Electromagnetic fields exist partly in the air above the dielectric substrate and partly within the substrate itself.
- The effective dielectric constant is greater than the dielectric constant of the air.
- Conductor losses increase with decreasing characteristic impedance.
- Wavelength
-
In the circuit below, if diodes and the moving coil millimeter are assumed to be ideal if mA reading is
, find Vm.
-
What current does
represent in pn junction diode? (where the symbols have their usual meaning) -
What happens when a paramagnetic material is heated above Curie temperature?
-
How many roots with positive real parts do the equation s3 + s2 - s + 1 = 0 have?
Whatsapp
Facebook
