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QUESTION: Electromagnetic Fields and Waves
(a) Illustrate with help of diagrams the Cartesian, Cylindrical and Spherical coordinate systems.
(b) Lay down the assumptions for a planar or Transverse Electro Magnetic (TEM) wave.
(c) Give an example of how Faraday's law could be applied in situations of heavy lightning.
(d) Write the equations of Maxwell for free space.
By means of mesh-current analysis, obtain the current in the 10-V source and the voltage across the 10- resistor in the circuit of Example.
Q. In an AM transmitter that transmits a total power of 1 kW, the unmodulated carrier power is 850 W. Compute the required value of (S i /N i )AM at a receiver, if (S 0 /N 0 )AM
Determine the resistance and temperature-coefficient: A platinum coil has a resistance of 3.146 Ω at 40 o C and 3.767 Ω at 100 o C. Determine the resistance at 0 o C and the t
Example of clamper circuits: Example of clamper circuits are as follow Voltage multiplier circuit: voltage circuit is employed to maintain a relatively low transformer pe
FET operation: Figure: I-V characteristics and output plot of a JFET n-channel transistor. The FET manages the flow of electrons (or electron holes) from the sourc
Q. A charge q(t) = 50 + 1.0t C flows into an electric component. Find the current flow.
purpose of equalizer rings in lap winding
Systems such as those encountered in mechanics, thermodynamics, and hydraulics can be represented by analogous electric networks, from the response of which the system characterist
The synchronous speed of a wound-rotor induction motor is 900 r/min. Under a blocked-rotor condition, the input power to the motor is 45 kW at 193.6 A. The stator resistance per ph
analysis
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