Lab 12 em Experiment (Formal Lab #2)

6- Why an insulator is represented as a capacitor C? What are the assumption modes?

What are very rough estimates of the graphs of capacitor voltage vs. time and resistor voltage vs. time while charging and discharging?

Write your solution pls.

Question 7 Consider a bar of p-type silicon that is uniformly doped to a value of N₁ = 2 × 10¹6 cm-³ at T = 300 K. The applied electric field is zero. A light source is incident on the end of the semiconductor as shown in Figure P6.19. The steady-state concentration of excess carriers generated at x = 0 is Sp(0) = 8n(0) = 2 x 1014 cm-3. Assume the following parameters: n = 1200 cm² /V-s, p = 400 cm² /V-S, Tho = 10-6 s, and Tpo = 5 x 10-7 s. Neglecting surface effects, (a) determine the steady-state excess electron and hole concentrations as a function of distance into the semiconductor, and (b) calculate the steady-state electron and hole diffusion current densities as a function of distance into the semiconductor. Light x = 0 p type

Example 1, given the two below displacements, fined the magnitude of the displacement 2D – E D = (6.00î + 3.00j – 1.00k) m and Ë = (4.00i – 5.00j + 8.00k) m %3D %3D

Please answer quickly The angular frequency of waveform having a period of 1 msec is 2pi radians/sec.       True       False   Root mode square value of a signal is same as the effective value of a signal.  True  False   The magnetic field energy stored in between the plates of the capacitor is mathematically equal to the half of the product of its capacitance and the square of the voltage across the capacitor.  True  False

Continued overleaf Page 4 of 5 06 Figure Q6 shows the cross-section of the typical layout of two tracks (A and B) on a printed circuit board with a ground plane C. The tracks are terminated as shown in the figure, with track A carrying digital signals. You can assume that the lines are electrically short. (a) Describe the electromagnetic coupling (crosstalk) between tracks A and B. (b) Draw the equivalent circuit that models the crosstalk and write down a relation between the voltage applied to track A and the voltage coupled on to track B at low frequencies, VNE. (c) If the total mutual inductance between the two tracks Lm = 9 nH, and the total mutual capacitance between the two tracks is Cm = 2 pF, calculate: (i) the amplitude of the near-end pulse VNE- (ii) the amplitude of the near-end pulse VNE if the driven line is terminated in a short circuit instead. Comment on the crosstalk. (d) How would you reduce the crosstalk? B C 50 2 50 2 V A B 50 Ων. V. 50 2 Vt) 1 5V 50 ns 50 ns 1 us…

What is the advantage of using square wave-form as an Input Signal? What is the shape of the outputwhen the input signals are sinusoidal and triangular in shape? (Hint: Use Function generator andOscilloscope to observe the output)

*10. A moving particle encounters an external electric field that de- creases its kinetic energy from 9520 eV to 7060 eV as the particle moves from position A to position B. The electric potential at A is -55.0 V, and the electric potential at B is +27.0 V. Determine the charge of the parti- cle. Include the algebraic sign (+ or -) with your answer.

Example-3 Thank you