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Voltage across a .1 micro farad capacitor is : v(t)=25v when t is less than or equal to 0; and v(t)=(Bte^-1000t) + (C(e^-1000)v) when t is greater than or equal to 0 Initial current is 100mA A) what is the initial energy in the capacitor B) evaluate B and C (coefficients) C) the expression for capacitor current
suppose we use a 32-bit unsigned fixed-point representation with the binary point to the left of the most-significant bit of the 32-bit number. (We'll have a range of 0 - almost 1.) What is the resolution of this representation
A line charge of uniform charge density (l) forms a circle of radius b that lies in the xy-plane in air with the center at the origin. a) Find the electric field intensity E at the point (0,0,h) b) At what value of h will E in part (a) be a maximum
An LVDT is used in an accelerometer to measure seismic-mass displacement. The LvDT and signal-conditioning output is 0.31 mV/mm with a +/-2 cm maximum core displacement.
A coil of wire contains 50 square turns, each one 5 cm long and 3 cm wide, and has a current of 30 A running through it. it is placed inside a magnetic field of 0.55 T at a 60 degree angle. what is the torque on the loop from the magnetic field
A rectuangular coil having area 5 X 10^-4 m^2 and 60 turns in pivoted about one of its vertical sides. The coil is in a radial horizontal feild of 90 G. What is the torsional constant of the hair spring connected to the coil.
Restricting yourself to nondegenerate dopings and also requiring the resistance to be readily measured with a hand-held multimeter (say 1 R 1000), what is the range of doping Pick a doping concentration in the mid range.
Describe and explain drift current and diffusion current in a PN junction in thermal equilibrium. What causes each In which directions are the electrons, holes, electron current, and hole current flowing for each effect
What is the voltage output resolution of a 16-bit D/A converter with a 15 volt voltage source Also, what is the analog output voltage of the D/A converter if only the MSB is on
Suppose the one dimensional field A=Kx.ax exist in a region. Illustrate the validity of Gaussian theorem by evaluating its volume and surface integrals inside and the rectangular parallelepiped bounded by surface: x=1,x=4,y=2,y=-2,z=0,z=3
A DC motor has a terminal voltage of 5V, a motor constant of Ka = 5.2 x 10-3 Vs, and an armature resistance of 500-ohm. Find the stall current, max speed in rotations per minute (RPM), and armature current at a speed of 480.769 radian/s (4591.006 ..
In region 1, defined by z>0, there is a magnetic field of H= 4.8x ˆ 6y ˆ +8z (A/m) and the relative permeability is 50. Determine the magnetic flux density B in region 2, z
Identify and describe three different ways to manufacture resistors. These variations can be "form factor" or the technique used to establish the resistance. Provide an example of a resistor de-rating curve from a manufacturer
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