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Problem 1:
Use Source Transformation to find V1 and V2?
Problem 2:
(a) Find the Thevenin equivalent circuit between a and b?
(b) What is the value of the load that when connected between a and b will absorb maximum power?
(c) what is the maximum power for the load in part (b)?
Problem 3:
Find the Norton equivalent between a and b using (Find the short circuit current directly) ?
Problem 4:
Use the principle of superposition to find outV ?
Describe why the intrinsic carrier concentration changes with temperature. This would include from very cold temperatures to 600K+ temperatures. Why does an extrinsic semiconductor become intrinsic above ~ 500K
The open circuit test on a single-phase 15kVA, 7500/480 V, 60 Hz distribution transformer yielded the following: V = 7500V; I = 0.2006A; P = 180W Calculate the core parameters RC and XM and the magnetizing current IM.
Consider a continuous-time LTI system with frequency response of H(j omega) = 1 + j 250 omega/(2 - j 50 omega)2 Find the expression for the magnitude of H(j omega) and sketch its Bode plot (sketch asymptotes and the magnitude curves).
What fixed point unsigned representation, with how many bits and how many bits to the left of the binary point, should we use if we need to represent numbers in the range 0 - 100 with a resolution of .001 or better
A certain load takes 10kW at 0.5pf lagging when connected to a 230V, 60Hz source. The supply company charges a penalty when the power factor fall below 0.8. What size of capacitor must be used in order to avoid penalty
Discuss how the electricity can affect health and safety. the discusiion also must include the explanation on how to prevent the hazard of the electricity. then give three examples of the latest hazard cases that had been published since year 2000..
A transmitting antenna has a radiation resistance of 72 ohms, an effective resistance of 8 ohms, a directive gain of 20, and an input power of 100 watts. What is the antenna gain, radiated power, and EIRP
If the surface heat flux varies linearly with x, such that q"s (W/m2) = 500x (m), what are the values of q, Tm,o, Ts,i, and Ts.o? Sketch the axial variation of T, and Tm. On the same figure, also sketch (qualitatively) the axial variation of Ts an..
A certain parallel circuit coornsists of onrely 1/2 W resistors each having the same resistance. The total resistance is 1 k ohm and the total current is 50mA. If each resistor is operating at one-half its maximum power level
For most low reluctance materials currently available and used in practical magnetic devices such as transformers, the slope of the BH curve may be always be considered constant over the possible range of operation of the device.
The vending machine sells soda for $1.50 per bottle. The machine also accepts D($1 bills) and Q(quarters= $.25). When the sum of money is greater than $1.50, i.e. two $1 bills, the machine returns change in the coin return (two quarters).
A parallel RLC network is constructed with a 5 mH inductor, and the remaining component values are chosen such that Q0 = 6.5 and ω0 = 1000 rad/s. Determine the approximate value of the input impedance magnitude for operation
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