Electromagnetic Field Theory As a result of reflection from a plane conducting wall, electromagnetic waves acquire an apparent velocity greater than the velocity of light in space. This is called the normal velocity. group velocity. velocity of propagation. phase velocity. normal velocity. group velocity. velocity of propagation. phase velocity. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory If n is the polarization vector and k is the direction of propagation plane electromagnetic wave, then n = K. n = - k. n × k = 0. n. k = 0. n = K. n = - k. n × k = 0. n. k = 0. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Two straight parallel conductors carry equal currents in opposite direction. The force between them is zero. none of above. repulsive. attractive. zero. none of above. repulsive. attractive. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A plane wave in a homogeneous medium has E = 50 sin(108t + 2z) uy V/m. What is the direction of wave propagation – z direction. y direction. – y direction. z direction. – z direction. y direction. – y direction. z direction. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which statement does not say that electrostatic field is conservative? The potential difference between two points is zero. The work done in a closed path inside the fields is zero. If is gradient of a scalar potential. If the curl of E is identically zero. The potential difference between two points is zero. The work done in a closed path inside the fields is zero. If is gradient of a scalar potential. If the curl of E is identically zero. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A coil of 300 turns is wound on a non magnetic core having a mean circumference of 300 mm and a cross sectional area of 300 mm2. The inductance of the coil corresponding to a magnetizing current of 6 A will be 3.768 μH. 37.68 μH. 1.1304 μH. 113.04 μH. 3.768 μH. 37.68 μH. 1.1304 μH. 113.04 μH. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS