Electromagnetic Field Theory A Yagi antenna has a driven antenna With a reflector With a reflector and one or more directors Only With one or more directors With a reflector With a reflector and one or more directors Only With one or more directors ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory If in a 1 mF capacitor, an instantaneous displacement current of 1 A is to be established in the spaces between its plates then it is possible by applying 106 volts. 106 Amp. 106 Amp/sec. 106 volts/sec. 106 volts. 106 Amp. 106 Amp/sec. 106 volts/sec. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A circular ring is carrying uniformly distributed charge q and a point charge – Q on the axis of the ring. The magnitude of dipole moment of the charge system is (Assume distance between centre of ring and point charge is d and radius of ring R) Q√(R2 + d2). QD. QR2/d. QR. Q√(R2 + d2). QD. QR2/d. QR. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The energy stored in the magnetic field at a solenoid 30 cm long and 3 cm diameter wound with 1000 turns of wire carrying an current at 10 A, is 0.15 J. 0.015 J. 0.5 J. 1.15 J. 0.15 J. 0.015 J. 0.5 J. 1.15 J. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Between a hollow and solid metal sphere, charge reside on outer surface in hollow and throughout in solid on outer surface in hollow and throughout in solid. on outer surface in both. None of above. on outer surface in hollow and throughout in solid on outer surface in hollow and throughout in solid. on outer surface in both. None of above. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In frec space E (z,t) = 103 sin(ωt - βz) uy v/m. What is the value of H (z,t) (103/377) sin(ωt - β z)(-ux) A/m. (103/377) cos(ωt - β z)(-ux) A/m. None of above. (103/377) sin(ωt - β z)(-uy) A/m. (103/377) sin(ωt - β z)(-ux) A/m. (103/377) cos(ωt - β z)(-ux) A/m. None of above. (103/377) sin(ωt - β z)(-uy) A/m. ANSWER DOWNLOAD EXAMIANS APP
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