Electromagnetic Field Theory Electric flux in coulombs emanating from any surface of a cube containing C coulombs of charge at its centre is 4πQ / 6ε. Q / 4π. Q / 6ε. Q / 6. 4πQ / 6ε. Q / 4π. Q / 6ε. Q / 6. 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 lower surface of the conductor. upper surface of the conductor. midway between the conductor and ground. the ground surface. lower surface of the conductor. upper surface of the conductor. midway between the conductor and ground. the ground surface. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The critical frequency of ‘F’ layer is greater than 30 MHz. True False True False ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory For DC voltage an inductor is virtually a depends on magnitude of voltage. short circuit. depends on polarity. open circuit. depends on magnitude of voltage. short circuit. depends on polarity. open circuit. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which of following is true for a purely inductive circuit ? Any capacitance even if present in the circuit will not be charged. Reactive power of the circuit is zero. Actual power of the circuit is zero. Apparent power of the circuit is zero. Any capacitance even if present in the circuit will not be charged. Reactive power of the circuit is zero. Actual power of the circuit is zero. Apparent power of the circuit is zero. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Two coils are coupled in such a way that the mutual inductance between them is 20 mH. If the inductances of the coils are 40 mH and 50 mH respectively, the coefficient of coupling is 0.447. 0.01. 0.477. 0.577. 0.447. 0.01. 0.477. 0.577. ANSWER DOWNLOAD EXAMIANS APP
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