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 0.577. 0.01. 0.447. 0.477. 0.577. 0.01. 0.447. 0.477. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The lagging of flux density behind the applied magnetising force is known as All of these flux. permeance. hysteresis. All of these flux. permeance. hysteresis. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A charge which when placed in vacuum from an equal and similar charge repels with a force of 9 × 103 N, is known as coulomb. micro - coulomb. milli - coulomb. pico - coulomb. coulomb. micro - coulomb. milli - coulomb. pico - coulomb. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In above problem the induced emf will be reduced to half if the conductor moves an angle of 75° to the direction of field. 30° to the direction of field. 45° to the direction of field. 60° to the direction of field. 75° to the direction of field. 30° to the direction of field. 45° to the direction of field. 60° to the direction of field. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Tropospheric scatter is used with frequencies in the HF VHF VLF UHF HF VHF VLF UHF ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Two identical circular coils, one closed and another is little split (not enclosed) are placed in an uniform magnetic field which decrease at a constant rate. If the plane to the coils are perpendicular to the field which of the following statements is true? An emf is induced in split coil. Joule heating does not occur in each of the coils. An emf is induced in both coils. Equal joule heating occurs in both coils. An emf is induced in split coil. Joule heating does not occur in each of the coils. An emf is induced in both coils. Equal joule heating occurs in both coils. ANSWER DOWNLOAD EXAMIANS APP
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