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Define the time constant of a capacitor-resistor series circuit. Such a circuit comprises a 50 μ F capacitor and a resistor, connected to a 100 V d.c. supply via a switch. If the circuit time constant is to be 5 s, determine
(a) the resistor value,
(b) the initial charging current.
What is the number of Bohr magnetons for an iron atom and a cobalt atom? What is the number of Bohr magnetons for iron and cobalt ferrite?
Given the following voltage and current expressions, show the expression for the voltage across R2 in the circuit Note, R1=100 ohm, R2=300 ohm, and R3=200 ohm: a) v(t) = 10 cos (377t + pi/4) V b) i(t) = 5 cos (754t - pi/3) mA
Suppose we need an amplifier with input resistance of 500 kO or greater and a voltage gain of -10. The feedback resistors are to be implemented in integrated form and have values of 10 kO or less to conserve chip area.
derive a transcendental equation for the resonant frequency of the next resonant mode of the cylindrical dielectric resonator. (Hz odd in z.)
Six light bulbs are connected in parallel across 120 V. Each bulb is rated at 75 W. What is the current through each bulb, and what is the total current?
Find the maximum available average power at the interface shown in the figure.- Specify the load required to extract the maximum average power.
Find the output v2(t) when the input vS(t) = 5u (t), R = 10 kΩ, and C = 0.1 μF.- Use MATLAB to plot your result.- Simulate the circuit using Multisim and compare your results.
Phase distortion - the phase response is not linear with frequency inside the frequency band of interest. Different frequency components are subject to different delay in passing through the system.
Describe how you would use the combination of a short pass filter, a long pass filter, an amplifier and a mechanicalchopper to amplify a 5 mV signal to a 50 mV signal and remove noisefrom the original 5 mV signal.
Discuss the operation of a JFET, including the pinch off and gate-source cutoff voltage in your explanation. Discuss how you can tell whether an FET is operating in the ohmic region or the active region.
Design a synchronous sequential circuit with one input line and one output line that recognizes the input string x = 1111. The circuit is also required to recognize overlapping sequence such that if the input string is x = 1101111111010
Why is it not necessary for Newton's third law to hold for current elements?
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