Electromagnetic Field Theory An insulated metal sphere of 20 cm diameter is charged by rubbing with charges 2 × 10-8 C. Potential developed will be 200 V. 0 V. 1800 V. 900 V. 200 V. 0 V. 1800 V. 900 V. 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? Zero. Infinity. Unity. Depends on strength of current element. Zero. Infinity. Unity. Depends on strength of current element. 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 The magnitude of the induced emf in a conductor depends upon on the rate of change of flux linkage. amount of flux cut. flux density of the magnetic field. amount of flux linkage. rate of change of flux linkage. amount of flux cut. flux density of the magnetic field. amount of flux linkage. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Self inductance of magnetic coil is proportional to N2. 1 / N. N. 1 / N2. N2. 1 / N. N. 1 / N2. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Plane z = 10 m carries charge 20 C/m2. The electric field intensity at the origin is – 10 uz v/m. – 360 πuz v/m. – 18 πuz v/m. – 72 πuz v/m. – 10 uz v/m. – 360 πuz v/m. – 18 πuz v/m. – 72 πuz v/m. ANSWER DOWNLOAD EXAMIANS APP
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