Electromagnetic Field Theory When a current carrying conductor is brought into magnetic field, the force that moves the conductor depends upon The value of current None of these The direction of the conductor The weight of the conductor The value of current None of these The direction of the conductor The weight of the conductor ANSWER DOWNLOAD EXAMIANS APP
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 velocity of propagation. normal velocity. phase velocity. group velocity. velocity of propagation. normal velocity. phase velocity. group velocity. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory What is the value of magnetic vector potential due to an infinitesimally small current element, evaluated at infinite distance from it? Depends on strength of current element. Zero. Unity. Infinity. Depends on strength of current element. Zero. Unity. Infinity. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which of the following statement is correct for divergence of electric and magnetic flux densities? Both are zero. It is zero for the magnetic flux density. It is zero for the electric flux density. These are zero for static densities but non zero for time varying densities. Both are zero. It is zero for the magnetic flux density. It is zero for the electric flux density. These are zero for static densities but non zero for time varying densities. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The transmitting antennas for lower frequencies (below 500 kHz) are generally Any of the above Parabolic reflector type Vertical grounded wire type Horizontal suspended wire type Any of the above Parabolic reflector type Vertical grounded wire type Horizontal suspended wire type ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which of the following impedance inversion is obtained? A quarter wave line A half wave line Short-circuited stub Balun transformer A quarter wave line A half wave line Short-circuited stub Balun transformer ANSWER DOWNLOAD EXAMIANS APP
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