Electromagnetic Field Theory What is the value of magnetic vector potential due to an infinitesimally small current element, evaluated at infinite distance from it? Infinity. Zero. Unity. Depends on strength of current element. Infinity. Zero. Unity. Depends on strength of current element. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory For a linear electromagnetic circuit, which of the following statement is true? Field energy is equal to the co-energy. Field energy is lesser than the co-energy. Field energy is greater than the co-energy. Co-energy is zero. Field energy is equal to the co-energy. Field energy is lesser than the co-energy. Field energy is greater than the co-energy. Co-energy is zero. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Conductor is varying and field is fixed then emf will be induced. This principle is called both A and B. dynamically induced emf. None of these static induced emf. both A and B. dynamically induced emf. None of these static induced emf. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The transmitting antennas for lower frequencies (below 500 kHz) are generally Any of the above Horizontal suspended wire type Vertical grounded wire type Parabolic reflector type Any of the above Horizontal suspended wire type Vertical grounded wire type Parabolic reflector type ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The critical frequency of ‘F’ layer is greater than 30 MHz. False True False True ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Two point charges (Q and – Q) are situated at the vertex of the square. If potential at another vertex is 2 V, so potential at opposite vertex (diagonally) is Zero. 1 V. 2 V. √ 2 V. Zero. 1 V. 2 V. √ 2 V. ANSWER DOWNLOAD EXAMIANS APP
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