Electromagnetic Field Theory In order to minimize loss due to hysteresis the magnetic material should have large coercivity. high hysteresis coefficient. small B-H loop area. high resistivity. large coercivity. high hysteresis coefficient. small B-H loop area. high resistivity. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A pure inductor is connected across a voltage source. Find the active power drawn by the inductor? either 1 or 2 None of these 0 maximum either 1 or 2 None of these 0 maximum ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The magnitude of the induced emf in a conductor depends upon on the flux density of the magnetic field. amount of flux linkage. amount of flux cut. rate of change of flux linkage. flux density of the magnetic field. amount of flux linkage. amount of flux cut. rate of change of flux linkage. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A square corner reflector is used in All of these Tv broadcast Point to point communication Radio astronomy All of these Tv broadcast Point to point communication Radio astronomy ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A solid sphere made of insulating material has a radius R and has a total charge Q distributed uniformly in its volume. What is the magnitude of electric field intensity, E, at a distance r (o less than r less than R) inside the sphere Q/(4 π εo r3). 3 Qr/(4 π εo R3). Qr/(4 π εo R3). QR/(4π εo r3). Q/(4 π εo r3). 3 Qr/(4 π εo R3). Qr/(4 π εo R3). QR/(4π εo r3). 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? Joule heating does not occur in each of the coils. Equal joule heating occurs in both coils. An emf is induced in both coils. An emf is induced in split coil. Joule heating does not occur in each of the coils. Equal joule heating occurs in both coils. An emf is induced in both coils. An emf is induced in split coil. ANSWER DOWNLOAD EXAMIANS APP
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