Electromagnetic Field Theory The ability of charged bodies to exert force on one another is attributed to the existence of electric field. neutrons. protons. electrons. electric field. neutrons. protons. electrons. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory An emf of 16 volts is induced in a coil of inductance 4 H. The rate of change of current must be 64 A / s. 16 A / s. 4 A / s. 32 A / s. 64 A / s. 16 A / s. 4 A / s. 32 A / s. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Two straight parallel conductors carry equal currents in opposite direction. The force between them is none of above. attractive. repulsive. zero. none of above. attractive. repulsive. zero. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A fan blade of length 2R rotates in a time period T in a magnetic field B. The induced voltage in the blade is proportional to R2BT. R2B / T. 2RBT. RBT. R2BT. R2B / T. 2RBT. RBT. 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 exits between the conductor and the ground. The maximum electric stress occur at The upper surface of the conductor. The ground surface. The lower surface of the conductor. Midway between the conductor and ground. The upper surface of the conductor. The ground surface. The lower surface of the conductor. Midway between the conductor and ground. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Magnetic flux density emerging out of a closed surface is zero. infinite. depends on magnetic movements inside the closed surface. depends on magnetic movements outside the closed surface zero. infinite. depends on magnetic movements inside the closed surface. depends on magnetic movements outside the closed surface ANSWER DOWNLOAD EXAMIANS APP
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