Electromagnetic Field Theory In a lossless medium the intrinsic impedance η = 60π and μr = 1. The relative dielectric constant εr shall be 8. 4. 2. 1. 8. 4. 2. 1. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory An inductor designed with 400 turns coil wound on an iron core of 16 cm2 cross sectional area and with a cut of air gap length of 1 mm. The coil is connected to a 230 V, 50 Hz supply. Neglected coil resistance, core loss, iron reluctance and leakage inductance. Find the current in the inductor. 9.04 A. 4.56 A. 2.28 A. 18.08 A. 9.04 A. 4.56 A. 2.28 A. 18.08 A. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A copper disc is rotated rapidly below a freely suspended magnetic needle. The magnetic needle starts rotating with velocity less than that of disc and in the same direction. equal to that of disc and in the same direction. equal to that of disc and in the opposite direction. less than that of disc but in opposite direction. less than that of disc and in the same direction. equal to that of disc and in the same direction. equal to that of disc and in the opposite direction. less than that of disc but in opposite direction. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory When a single turn coil rotates in a uniform magnetic field at a uniform speed, the induced emf will be none of these. alternating. pulsating. steady. none of these. alternating. pulsating. steady. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The radiation pattern of a parabola antenna is A figure of directional Omnidirectional None of these Highly directional A figure of directional Omnidirectional None of these Highly directional ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The work done by a force F = 4un - 3uy + 2uz N in giving a 1nC charge a displacement of (10 ux + 2uy - 7uz) m is 60 nj. 40 nj. 100 nj. 20 nj. 60 nj. 40 nj. 100 nj. 20 nj. ANSWER DOWNLOAD EXAMIANS APP
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