Electromagnetic Field Theory Which of the following represents ohms law V = RI I = GV All of these J = σE V = RI I = GV All of these J = σE ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The magnetic intensity in A/m at the centre of circular coil of diameter 1m and carrying a current of 2A is 8. 2. 3. 4. 8. 2. 3. 4. 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 45° to the direction of field. 75° to the direction of field. 30° to the direction of field. 60° to the direction of field. 45° to the direction of field. 75° to the direction of field. 30° to the direction of field. 60° to the direction of field. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The hysteresis loop of a magnetic material has an area of 5 cm2 with the scale given as 1 cm = 2 AT and 1 cm = 50 mwb At 50 Hz; the total hysteresis loss is 25 W. 15 W. 20 W. 50 W. 25 W. 15 W. 20 W. 50 W. 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 both coils. Equal joule heating occurs in both coils. Joule heating does not occur in each of the coils. An emf is induced in split coil. An emf is induced in both coils. Equal joule heating occurs in both coils. Joule heating does not occur in each of the coils. An emf is induced in split coil. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory An open wire transmission line having a characteristic impedance of 600 ohms is terminated by a resistive load of 900 O. The standing wave ratio will be 2.5 3.5 1.5 4.5 2.5 3.5 1.5 4.5 ANSWER DOWNLOAD EXAMIANS APP
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