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An opera glass uses an objective and eyepiece with focal lengths of +12 cm and -4.0, respectively. Determine the length (lens separation) of the instrument and its magnifying power for a viewer whos
how much work is done(by a battery,generator,or some other source of potenial difference) in moving Avogadro's number of electrons from an initial point where the electric potenial is 9.00V to a poi
A coil having an inductance of 10uH is intended for applications around 1-MHz frequency. Its Q is specified to be 200. Find the equivlent parallel resistance R. What is the value of the capacitor re
The current through a 8 mH coil changes at the rate of 3.5 A/s. Determine the voltage that appears across the inductor. (mV)
Develop the Boolean expression in POS form found by removing the static-zero hazards from the following expression. Your circuit must be minimized to receive full credit. Draw the schematic for the
A copper conductor has a dia of 0.06 in and it is 1200ft long. Assume that the current total (dc) carried is 50A. Find the total resistance of the conductor. What current density exists in it What is
A state diagram for a particular finite state machine requires a total of 130 states. What is the minimum number of binary digits required to encode these states uniquely. This is actually the minim
The output is asserted high (Z=1) whenever the input sequence 1101 has been observed during the past four clock cycles, as long as 1001 has never been observed. Draw the state diagram for the finite
A 60-Hz, 220-V-rms source supplies power to a load consisting of a resistance in series with a capacitance. The real power is 2000W, and the apparent power is 2500VA. Determine the value of the resi
The input signal to a filter contains components that range in frequency from 100 Hz to 50 kHz. We wish to reduce the amplitude of the 50-kHz component by a fctor of 200 by passing the signal throug
a) Determine the numerical value of To. b) What is the average value of f(t) over the interval 0≤t≤To c) Determine the amplitude of the fifth-harmonic component. d) Determine the phase of the fi
1. Let Vi has a peak of 10v and R=1kOhm. Find the peak value of id and DC compoent V-o. 2. Consider a silicon diode with n = 1.5 Find the change in voltage if the current changes from 0.1 mA to 10 mA.
If you have 1024 samples of a discrete-time band-limited signal sampled at a rate of 100MHz. what is the time period between samples. If you take a 2048 point FFT of the sampled signal, what will be
A voltage follower of the op-amp parameters are Ao = 5x 10^5, Ro = 75ohm, and Ri = 2 Mohm. The input voltage is Vs = 5V and Rs = 10 kohm. Find the output voltage Vo,the input resistance Rin = Vs/is
A transistor amplifier has a midband gain of -120, a high cutoff frequency of 36 kHz, and a bandwidth of 35.8 kHz. In addition,the actual response is also about -15 dB at f=50 Hz. Write the transfer
assuming positive-sequence operation,calculate the exact abcd parameters of the line.compare the exact B parameter with that of the nominal II circuit.also compare the equivalent and nominal II circ
A three phase ac machine with sinusoidally distributed windings has a 3-phase inductance, Lm = 40 mH . Balanced three phase voltages are applied to the stator with line-line voltage,VLL = 208V ( RMS
A DC motor is driving a load given by TL = 3 + 0.02ωLNm , where ωL is the speed in rad/sec. The armature resistance of the motor, Ra = 2Ω . The machine constants at rated flux dens
A DC machine has the following parameters: Ra =1Ω, La = 4 mH , kPWM = 100 . (a) Design the current loop with a bandwidth of 1000 rad/s and phase margin of 900. (b)Given a step current command, i
A semiconductor, in thermal equilibrium, has a hole concentration of p0 = 2x1016 cm-3. The minority carrier life time = 3x10-7 s. (Assume, ni = 1010 cm-3) (a) Determine the thermal equilibrium recom
find the fourier series coefficients of z(t) (use the results of a) and b) along with the multiplication property of continuous time fourier series coefficients). find the fourier series coefficien
Draw as circuit diagram of the basic non-inverting amplifier configuration. Give an expression for the closed-loop voltage gainof the circuit in terms of the resistances, assuming an ideal co amp
A silicon semiconductor resistor is in the shape of a rectangular bar with a cross sectional area of 1x10-6 cm2 a length of 0.1 cm and is doped with a donor concentration of 5x1016 cm-3. (a) Calcula
the purchasing power P of a certain unit of currency declines by 3 percent per year. Determine the time constant associated with the purchasing power of this currency.