Electromagnetic Field Theory A potential field is given by V = 3x2 y – yz. The electric field at P(2, -1, 4) is 12 Ix - 8 Iy V/m. 12 Ix + 8 Iy + Iz V/m. 12 Ix - 8 Iy - Iz V/m. 12 Ix - Iz V/m. 12 Ix - 8 Iy V/m. 12 Ix + 8 Iy + Iz V/m. 12 Ix - 8 Iy - Iz V/m. 12 Ix - Iz V/m. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which of the following will increase the antenna radiation efficiency? Providing insulation on conductor Use of larger section of conductor Top loading of antenna Any of the above Providing insulation on conductor Use of larger section of conductor Top loading of antenna Any of the above ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A sphere of 20 cm radius contains electrical charge of density 2/(r sinθ) c/m3. What is the total charge contained within the sphere? 0.335/sinθ c. 0. 0.335 C. None of above. 0.335/sinθ c. 0. 0.335 C. None of above. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A charge which when placed in vacuum from an equal and similar charge repels with a force of 9 × 103 N, is known as pico - coulomb. coulomb. micro - coulomb. milli - coulomb. pico - coulomb. coulomb. micro - coulomb. milli - coulomb. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which of the following statement is correct for divergence of electric and magnetic flux densities? These are zero for static densities but non zero for time varying densities. It is zero for the electric flux density. Both are zero. It is zero for the magnetic flux density. These are zero for static densities but non zero for time varying densities. It is zero for the electric flux density. Both are zero. It is zero for the magnetic flux density. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The radiation pattern of Hertzian dipole in the plane perpendicular to dipole is a Circle Null Figure of eight None of these Circle Null Figure of eight None of these ANSWER DOWNLOAD EXAMIANS APP
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