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 phase velocity. normal velocity. group velocity. velocity of propagation. phase velocity. normal velocity. group velocity. velocity of propagation. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A long wire composed of a smooth round conductor runs above and parallel to the ground (assumed to be a large conducting plane). A high voltage exists between the conductor and the ground. The maximum electric stress occurs at the ground surface. midway between the conductor and ground. lower surface of the conductor. upper surface of the conductor. the ground surface. midway between the conductor and ground. lower surface of the conductor. upper surface of the conductor. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory MUF is highest in periods of greatest sunspot activity. False True False True ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A satellite that simply reflect back the signals from one region of the earth to the other region is known as Orbiting satellite Geostationary satellite Active satellite Passive satellite Orbiting satellite Geostationary satellite Active satellite Passive satellite ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The energy stored in the magnetic field in a solenoid 10 cm long and 4 cm diameter wound with 2000 turns of wire carrying a current at 20 amp, is 12 joules. 30 joules. 24 joules. 15 joules. 12 joules. 30 joules. 24 joules. 15 joules. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Electric flux in coulombs emanating from any surface of a cube containing C coulombs of charge at its centre is Q / 4π. 4πQ / 6ε. Q / 6. Q / 6ε. Q / 4π. 4πQ / 6ε. Q / 6. Q / 6ε. ANSWER DOWNLOAD EXAMIANS APP
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