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what is the perceived colour if you mix red ,green and blue dyes in equal proportion and why ? What about red and green frequiencies only?
Do you think that an electric automobile based on capacitive energy storage is feasible?
Determine the panel orientation you would choose to obtain maximum energy: (a) Over the year (b) In the summer (c) In the winter Discuss your choice of slope angles if the location is at 75°N.
Suppose a linear circuit contains a voltage source and a current source. When the voltage source is set to 10V and the current source is set to 10 mA, the output voltage is 1V. When the voltage source is set to 10V and the current source is set to..
An FM transmitter delivers to a 75 ohm antenna a signal voltage of \(V(t)=1000 sin(10^9t+4sin10^4t)\) Determine: (a)Carrier frequency (b) Intelligence frequency (c) Modulation index
Assume the average energy density of sunlight to be 800 w/m^2 ---and the overall photovolatic system efficiency to be 10 percent. Calculate the land area covered with photovolatic cells needed to produce 1000 Mw , the size of a typical large centr..
Consider a satellite communication link with a one way propagation delay of 300ms between the sender and receiver, operating at 10Mbps using packets of length 1500bytes. Length of the ACK packet is also 1500 bytes.
Consider the following differential equation, where x(t) is the input and y(t) is the output: d/dt y(t)+5y(t)=2x(t) Suppose the input is x(t) = 4u(t) and the initial condition is y(0-) = 6 1. What is the impulse response for the system
Calculate the parameters RE and XE, and the maximum efficiency and power output for the transformer when a load with a 90% lagging power factor is connected to the transformer secondary winding.
A pulsar lies 1000 light years from Earth. The average plasma concentration is 1 el/cc. Using the plasma dispersion relationship for group speed, what is the group delay between a pulsar pulse received at 1 GHz and at 800 MHz
What is the effect of a frequency difference between the carrier and local oscillator on output quality? Show mathematically.
You are working with a design team on a new product and are assigned to design the power supply. The requirements for the power supply are as follows: Input AC: 115 V AC +- 10%, 50-60 Hz Outputs: +5 V DC at 100 ma, +-12 V DC at 50 ma
The location of the zeroes in the spectrum suddenly changes to 5 kHz, 10 kHz, 15 kHz.... What parameter of the rectangular pulses has changed and what is its new value?
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