Electromagnetic Field Theory What is the value of total electric flux coming out of a closed surface? Equal to the surface charge density. Equal to volume change density. Zero. Equal to total charge enclosed by the surface. Equal to the surface charge density. Equal to volume change density. Zero. Equal to total charge enclosed by the surface. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which of following is true for a purely inductive circuit ? Reactive 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. Actual power of the circuit is zero. Reactive 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. Actual power of the circuit is zero. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The inductance of a long solenoid of length 1000 mm wound uniformly with 3000 turns on a cylindrical paper cable of 60 mm diameter is 32 mH. 3.2 µH. 3.2 mH. 3.2 H. 32 mH. 3.2 µH. 3.2 mH. 3.2 H. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The magnetic field required to reduce the residual magnetism to zero is called Hysteresis. Retentivity. Coercivity. Saturation magnetism. Hysteresis. Retentivity. Coercivity. Saturation magnetism. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A metal surface with 1 meter radius and surface charge density of 20 coulombs / m2 is enclosed in a 10 m side cube. The total outward electric displacement normal to the surface of the cube is none of these. 10π coulombs. 40π coulombs. 80π coulombs. none of these. 10π coulombs. 40π coulombs. 80π coulombs. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The main disadvantage of the two-hole directional coupler is Narrow bandwidth Low directional coupling High standing wave ratio Poor directivity Narrow bandwidth Low directional coupling High standing wave ratio Poor directivity ANSWER DOWNLOAD EXAMIANS APP
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