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In a lightning strike there is a rapid movement of negative charge from a cloud to the ground. In what direction is a lightning strike deflected by Earth's magnetic field
A solar pond consists of a thin layer of fresh water floating ontop of a denser later of salt water. When the salty layer absorbssun light, it becomes hot, to 140 degrees C. The ambient temp isassum
A 100-μF capacitor is initially charged to 100V. We want 90 percent of the internal energy to remain after one minute. What is the limit on the leakage resitance for the capacitor.
Assume a 10w power is transmitted over an area with a radius of 10m. Determine power density attenuation (Lρ) and electric field strenght attenuation in dB when received power is reduced to 1/10
A)What is the standard frequency of the AC voltage generatedand distributed by an electrical utility. B)Explain the function of the prime mover in the generating process.
What peak value of AC current is required to produce the same amount of heat B) What rms, or effected value, of AC current is requiredto produce the same amount heat
The line voltage and current delivered to a balanced 3-phase Wye- connected resistive load bank is measured and found tobe 415 V and 30 A respectively. 1) What is the value of voltage across on phas
1 - Sketch the signal. 2- Determine if the signal is even, odd, or neither even nor odd. 3- Evaluate and sketch the even and odd components of the signal.
Resistors R1 -8 Ω, R2 -4 Ω and R3 -6 Ω, are connected in series to a voltage source. Which resistor will dissipate the most power
Three loads (R1, R2 and R3) are connected in series to a 120-VDC source. The values of E1 and E2 are measured and found to be 32 V and 8 V, respectively. What is the value of E2
The address lines (A0-A7) are checked with a logic probe and all areindicating pulse activity, except for A3 which shows a constantHIGH, and A7 which shows a constant LOW; the select lines, S0 andS1
A particular tachometer displays engine RPMs from zero to10,000.If the ADC accepts voltage levels from zero to fivevolts,in order to achieve full-scale representations from the tachometer, what shou
Electricity is supplied from Grid to a Town, village or Industry through power lines or cables. What is the role of Transformer in transmission and what types of transformers are used in this proces
An engineer working in asatellite station complex has received the program by an earthstation and routed the signal through a rectangular waveguide ofdimensions (axb=2.4x1.2) to control room 12.2m a
A rectangular waveguide with dimensions a=2b=5cm operates at11 GHz. Assuming that the guide is filled with air, find the highest possible operating mode and the intrinsic wave impedance at that mode
An isolated Free electron is traveling through an electric field from some initial point, where its coulombic potential energy per unit charge(voltage) is 17 KJ/C and velocity = 93 Mm/s to some fina
A bidirectional shift register is one in which the datacan be shifted either left or right. It can be implemented by usinggate logic that enables the transfer of a data bit from one stageto the next
A 300 ohm feedline is to beconnected to a 5-m long, 200 ohm line terminated in a 150 ohmantenna resistor. Both lines are lossless and use air as aninsulating material, and the operating frequency is
Calculate the frequencyto which the generated voltage drops before the steam flowcommences toincrease to meet the new load. The value of the stored energy forthe machine is5kW-sec per KVA of generat
Determine the acceleration if the input less the rotational losses is 25,000hp and the electric power developed is 15 MW. Ifthe acceleration computed for the generator is constant for a period of 15
An adder for Gray-coded-decimal digits is to be designed using a ROM. The adder should add two gray-coded digits and give the Gray-coded sum and a carry. For example, 1011 +1010=0010 with a carry of
Design a synchronous counter with the following repeated sequence:2-4-6-1-3-5. Build the counter with T flip-flops and minimized gates. Assume the (active low)asynchronous clear is tied to a logic 1
construct a block diagram and an ASMD chart for a digital systemthat counts the number of people in a room. The one doorthrough which people enter the room has a photocell that changers asignal x fr
1. Obtain the compete state diagram showing both used and unused states and transitions. It is a self-correcting design 2. If the design is not self-correcting - modify it to obtain aself-correcting
A 10V supply is connected in series with a resistor and 3 diodeswith the output taken with respect to the three diodes together to ground. The problems asks to find the value of the resistor provide