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At t = t0, the voltage across a certain capacitance C is zero. A pulse of current flows through the capacitance between t0 and t0 +?t, and the voltage across the capacitance increases to V f . What can you say about the peak amplitude Im and area under the pulse waveform (i.e., current versus time)? What are the units and physical significance of the area under the pulse? What must happen to the peak amplitude and area under the pulse as ?t approaches zero, assuming that V f remains the same?
A satellite rotates around the globe at 16,000 km/h. To reenter into the atmosphere, the speed is reduced by 1000 km/h by firing a small rocket in the direction opposite that of the satellite's motion. What are the velocity vectors of the sate..
For the vector field E = 5exp(-2r)rˆ - 3rzˆ calculate the divergence in cylindrical coordinates. Verify the divergence theorem for the cylindrical region enclosed by r=2, z=0 to 4.
A student project requires a 6 V DC power supply that can source 300 mA. The batteries for the power supply must last for a minimum of 8 hours of continuous operation. NiMH rechargeable batteries in AA size are to be used.
Develop an m-file to determine the roots of the closed-loop transfer function characteristic polynomial for K=1 and 5. For which values of K is the closed loop system stable
An autotransformer with a total of 600 turns has its secondary winding embracing 200 turns. The 600 turns are connectred to a 60Hz, 2400V driving voltage. A load connected to the secondary draws 4.8kVA at 0.6 power factor lagging.
The charging battery remains connected and the space between the plates is filled with a material of dielectric constant 5. Compute the new capacitance, the charge, the field strength and the energy stored.
Question about Complex power, If an electrical load operates at 240 Vrms.The load absorbs an average power of 8kW with .8 lagging power factor
an ac generator with a frequency of 150hz and an rms voltage of 22.5v is connected in series with a 15.0 kilo ohms
The circuit for wein bridge oscillator with 5KHz frequency using transister (with exact values of resistor and capacitor).
What is Pulse Width Modulation (PWM) ? and what are Uses of PWM Technique and its its functions in Arduino ?
Why do you think we need both rectangular and polar forms. There still seems to be some confusion about the relationship between R, Xc, OR XI and the phase angle. Take a value for R and a value for XC that is ten times smaller than R and find the..
Describe very briefly the function and essential features of each block - Identify all inputs and outputs by the use of I/O designation charts.
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