Electrical Engineering Answers

integrate sqrt(x ^ 3 + 2x ^ 2 + x) dx

Insulator capacitance of MOSFET 10 micro F . width of depletion layer 0.2 cm and permitivity is 33 . calculate total capacitance

The saturation current will be the twice of the diode current. and contact potential of the diode is 33 Volt. calculate the temperature.

Q and A.

Between superposition, nortons and thevenin's theorem, between the 3 theorem, which do you think is most beneficial and which theorem is super hard to apply or to the point that it's not applicable anymore? Give an example and state why?

) State and prove Wiedemann–Franz law (or) Derive expressions for electrical and thermal conductivities on the basis of classical free electron theory and deduce the value of Lorentz number

) State and prove Wiedemann–Franz law (or) Derive expressions for electrical and thermal conductivities on the basis of classical free electron theory and deduce the value of Lorentz number

A ring of mean diameter 30 cm is wound with 200 turns of copper wire carrying a current of 2 

A. The x-section of the magnetic material of the ring is 12 cm2 and its relative permeability is 

1,000. Determine theflux through it.

3.18 The electric flux density is given as D=6ya, +2xa,+ 14xya mC/m². Determine the electric flux passing through (a) a rectangular window defined by (2, 0, 0), (0, 2, 0), (0, 2, 2), and (2, 0, 2), (b) a circle of 10-cm radius in the xy plane at z = 0, and (c) a triangular region bounded by (0.0, 0), (2, 0, 0), and (0, 2, 0).

A certain circuit has equivalent impedance Z = 3+j4 Ω, and an applied voltage

v = 50 cos( 1000t +30°) V The apparent power S is

select one:

a. 180.6L 53.13°VA

b. 302.5L53.13°VA

C. 360L 53.13°VA

d. 202.52L53.13°VA

e. 250L53.13°VA

For high -pass active filter with corner frequency 8 kHz, then R and C are: 

Select one : 

a. 2.5kΩ ,7.9557nF 

b. 2 kΩ ,7.9557nF 

c. 5kΩ ,7.9557nF 

d. 10kΩ ,7.9557nF

e. 1kΩ ,7.9557nF