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03000EE302052002

If the electric potential in a region is given by, V = 2x*y + 20z ततः volts.

Find electric field intensity and electric flux density at P (6, -2.5, 3).
PART C
Answer any two full questions, each carries10 marks.
Consider an infinitely long straight conductor carrying current I. Calculate the
magnitude of magnetic flux density at a distance r from the conductor assuming
the permeability of the medium to be equal to ப
A square loop of side 10 cm centered at the origin carries 100A in the counter
clockwise direction. Calculate the magnetic field intensity at the centre of the
loop.
A circular loop located on x? + y? = 9,z = 0, carries a direct current of 10A
along aw. Determine the magnetic field intensity, H at (0, 0, 4).
Derive the expression for electrostatic energy stored in an assembly of N point
charges.
Derive the electrostatic boundary conditions at the interface between two perfect
dielectrics.
Explain the inconsistency of Ampere’s circuital law for time varying fields.
PART 0
Answer any two full questions, each carries 10 marks.
State and prove Poynting’s theorem and explain the physical significance of
Poynting’s vector.
Derive the wave equation for electric field in phasor form.
Calculate the skin depth and wave velocity at 2 MHz in aluminium with
conductivity 40x10° ൨൯൩ and relative permeability, |= 1.
A transmission line has R=30Q/km, L=100mH/km, G=0 and C=20uF/km. At a
frequency of 1 kHz, calculate the characteristic impedance and propagation
constant of the line.

Define standing wave ratio. How is it related to voltage reflection coefficient?

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