STUPIDSID
Attempt any four
1(a)
Point charges Q2 = 300 μC located at (2,-1,-3) m experiences a force \( \displaystyle \overline {F_2}=8\overline {a_x}-8 \overline {a_y}+4\overline{a_z}N. \) due to point charges Q1 at (3,-4,-2)m. Determine Q1.
5 M
1(b)
the height of a monopole antenna is &lambda
5 M
1(c)
State and explain Biot-Savart's law
5 M
1(d)
Find out the divergence and curl of the following function
\( \overline {F}=2x^2 y\overline {a}_x+x^2z\overline{a}_y+yz^3\overline{a}_z \)
\( \overline {F}=2x^2 y\overline {a}_x+x^2z\overline{a}_y+yz^3\overline{a}_z \)
5 M
2(a)
Derive Maxwells integral and point form of equations for static fields
10 M
2(b)
Find electric fields intensity E due to an infinite surface charge.
10 M
3(a)
Define the polarization of wave. Explain different types of polarization
10 M
3(b)
Derive boundary conditions for electric and magnetic fields at the boundary of two dielectric media.
10 M
4(a)
Explain in detail FDM method also state advantages and drawback of it.
10 M
4(b)
State Poynting theorem and derive the average poynting vector.
10 M
5(a)
Explain the significance of the term 'effective area of an antenna'. Derive the relationship between effective area and directivity of any antenna.
10 M
5(b)
Explain the principle modes of operation of helical antenna and draw its radiation pattern
10 M
6(a)
Classify anf explain different types of wave propagation.
7 M
6(b)
Explain folded dipole antenna and its applications.
7 M
6(c)
Explain following terms critical frequency, virtual height, maximum usable frequency
7 M
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