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The circuit in the figure is operating at dc, since the current source is a constant value.
a) Draw the dc equivalent circuit.
b) Find the current through the inductor.
c) Find the voltage across the capacitor.
d) How much energy is stored in the inductor?
e) What is the value of C such that the energy stored in the capacitor equals the energy stored in the inductor?
f) How much energy is stored in the 3.9?F capacitor? Use the formula for the energy.
g) What is the power dissipated in the resistors?
h) What is the power supplied by the current source?
Suppose a turbine is used for generating electricity, estimate the ratio of powers generated by the same speed water and air. (Water density=1g/cm3, air density =1.2kg/m3)
The magnetic tape recorder uses linear analog to digital encoding. Telephone systems use non linear analog to digital conversion. Explain the difference.
General questions for network communications, A user message is split into 15 frames, each of which has an 80% chance of arriving error-free. If no error control is used by the data link layer, how many times must the message be sent on the averag..
Assume the acceptable deviation is +- 5.8%. Thus, a nominal rms voltage of 120 V will range from 113 to 127 V. Suppose the line to line voltage at Customer A is 13.8kV, the load at customerA consumes complex power (1.2+j1.2)x 10^6 W.
What is the advantage of using a double-break contact instead of a single-break contact?
Calculate the total complex power, total current drawn and the total power factor and Y-connected load with an impedance of (1+ j 6) ohm per phase,
Determine the battery voltage required to obtain a flux density of 1.2 T in the air gap. Use the magnetization curve.
Mobile IP was intended to work with legacy correspondent hosts and legacy applications. However, some advantages may be gained if correspondent hosts are aware of mobility in certain ways.
The nickel- cadmium (nicad) battery is a secondary battery, meaning it can be recharged. it has the following reactions occuring during discharge: A nicad battery has .87 g of cadmium, which is the limiting reactant.
A long narrow rod has an atomic density of 5*1028 m-3. Each atom has the polarizability of 10-40 F m2. Find the internal electric field when an axial field of 1 V/m is applied.
Consider an LTI(linear,time-invariant) system with input x(t) and output y(t). Suppose you know(measure) the step response, tha is , for x(t) =u(t), you know that y(t) = 2e^(-0.5t)*u(t). Find the output for the following different inputs
Problem on complex power, An electric load operates at 240 volts. The load absorbs an average power of 8Kw at a lagging power factor of 0.8.
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