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1. What is a Poynting vector? What is its physical significance?
2. What is the physical interpretation of the surface integral of the Poynting vector over a closed surface?
3. Discuss how the fields far from a physical antenna vary inversely proportional to the distance from the antenna.
4. Discuss the interpretation of energy storage in the electric and magnetic fields of a uniform plane wave.
A resistor denoted as RL is connected in parallel with the capacitor in the circuit. The loaded low-pass filter circuit.a) Derive the expression for the voltage transfer function Vo/Vi. b) At what frequency will the magnitude of H(jω) be maximum
Derive the Boolean expression for the output ‘g' in terms of its sum of products - further simplify this expression without the use of K maps.
-What is Industrial Automation, Their Types and Hierarchy of an Industrial Automation System -Why Industrial Automation? (Advantages of Automation System)
A uniform plane electromagnetic wave propagates in a lossless dielectric medium. The electric field in the wave has the instantaneous expression E(z,t) = iy 3 sin(3pi.109t + 100piz 600), V/m. i) What is the frequency of the wave in Hz
A dynamite blast at a quarry launches a rock straight upward, and 1.6 s later it is rising at a rate of 14 m/s. Assuming air resistance has no effect on the rock, calculate its speed (a) at launch and (b) 5.7 s after launch.
ELF communication signals ( f
Given an 24 MHz bus speed. Write down the line(s) of instruction which set the ATD1 unit for 2MHz conversion frequency, 10-bit resolution and 8 A-to-D clocks per sample time.
the telephone company has a fiber-optic line with time division multiplexing that runs from the united states to
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.
The current through a 20-ohm inductive reactance is given. What is the sinusoidal expression for the voltage? Sketch the (v) and (i) sinusoidal waveforms on the same axis. A - i = 5sinwt
A motor is supplying 50 N × m of torque to its load. If the motor's shaft is turning at 1500 r/min, what is the mechanical power supplied to the load in watts? In horsepower?
find the horizontal distance between the two charges under the assumption that ex is small.
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