Electromagnetic Field Theory The potential that appears at a point in space due to the current which caused it is called potential Retardation Accelerating Oscillating Lagging the current Retardation Accelerating Oscillating Lagging the current ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory An emf of 16 volts is induced in a coil of inductance 4 H. The rate of change of current must be 64 A / s. 32 A / s. 4 A / s. 16 A / s. 64 A / s. 32 A / s. 4 A / s. 16 A / s. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The electrical field strength at a distance point A due to a point charge +q, located at the origin, is 100 µl v/m. If the point charge is now enclosed by a perfectly conducting metal sheet sphere whose centre is at origin, A, outside the sphere, becomes 100 μ v/m. 0. None of above. - 100 μ v/m. 100 μ v/m. 0. None of above. - 100 μ v/m. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A coil of 300 turns is wound on a non-magnetic core having a mean circumference of 300 mm and a cross sectional area of 300 mm2. The current of 3 A will be 37.68 µH. 113.04 mH. 37.68 mH. 113.04 µH. 37.68 µH. 113.04 mH. 37.68 mH. 113.04 µH. 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 20 W. 25 W. 50 W. 15 W. 20 W. 25 W. 50 W. 15 W. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In case of antenna the ratio of the power radiated in the desired direction to the power radiated in the opposite direction is known as Loss coefficient None of these Front to back ratio Transmission efficiency Loss coefficient None of these Front to back ratio Transmission efficiency ANSWER DOWNLOAD EXAMIANS APP
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