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A 50-cm length of coaxial cable has an inner radius of 1 mm and an outer radius of 4 mm. The space between conductors is assumed to be filled with air.
The total charge on the inner conductor is 30 nC. Calculate the charge density on each conductor, and the E and D fields.
A battery is charged. The relationship between the charging current, i amperes and the time, t hours passed, is given by the formula:
The counter must stop at a value which is defined by using the 8 slide switches. Use two seven segment displays to implement the counter, there must be 2 individual counting bits each per seven segment display. The counter should run when a push b..
.a. If the following voltage pulse is being applied to a stepper motor coil to the increment the shaft, what type of driving style is being used b. What advantage does this have as opposed to a constant-voltage pulase
A three phase motor draws 20kva at 0.7 lagging power factor from a 240 V source. Determine the kVAR rating of the capacitors to make the combined power factor 0.9 lagging and determine the line current before and after the capacitors are added.
A volume is divided into two equal parts by a partition. The left volume has N atoms. The atoms have a mass m. A hole of area A is made in the partition at time t=0 A)Develop an expression for the number of white atoms on each side of the partition..
Calculate the per unit impedance of the transformer using base values of 1 MVA and 400 V. (and .)
A 3-phase short circuit occurs at the 240-V terminals of the receiving -end transformers. Compute the steady-state short-circuit current in the 2400-V feeder wires, in the primary and secondary windings of the receving-end transformers, and at the..
Two infinitely long coaxial cylindrical surfaces, r = a and r= b (b > a), carry surface charge densities Dsa and Dsb,respectively. (a) Determine the electric field intensity everywhere. (b) What must be the relation between a and b in order that Eva..
Develop a low-pass RC filter to attenuate 0.5 MHz noise by 97%. Specify the critical frequency, values of R and C, and the attenuation of a 400-Hz input signal.
a) Find the amplitude and phase of the Thévenin voltage with respect to the terminals a, b. b) Find the Thévenin impedance with respect to the terminals a, b. c) Draw the Thévenin source physical equivalent circuit.
For both designs, the supply voltage is nominally 9 V and varies by +/- 1V. For the first design, assume that the availability of supply current is not a problem, and thus operate the diode at 20mA. For the second design, assume that the current f..
Determine the periods and find exponential fourier series coeffecients of functions. A.) f(t) = 2(cost)(cos2t) B.) g(t) = 3 + 2e^-j2t + 2e^j2t + 2cos4t C.) h(t) = 4
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