Electromagnetic Field Theory Magnetic circuit with cross sectional area of 20 cm2 is to be operated at 50 Hz from 120 Vrms supply. The number of turns required to active a peak magnetic flux density of 1.8 T in the core flux is 150. 450. 300. 600. 150. 450. 300. 600. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Unit of electric flux density is coulomb. coulomb / meter2. weber / meter2. farad / meter. coulomb. coulomb / meter2. weber / meter2. farad / meter. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Magnetic current is composed of which of the following? None of these Only displacement current. Only conduction current. Both conduction and displacement current. None of these Only displacement current. Only conduction current. Both conduction and displacement current. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Two coils have inductances L1 = 1200 mH and L2 = 800 mH. They are connected in such a way that flux in the two coils aid each other and inductance is measured to be 2500 mH, then Mutual inductance between the coils is ___________ mH. 150. 145. 250. 225. 150. 145. 250. 225. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The attenuation in waveguide above to cut off frequency Infinite Zero Very low Very high Infinite Zero Very low Very high ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A dipole having a moment p – 3ux - 5uy + 10uz ncm is located at p(1,2,-4) in free space. The V as Q(2,3,4) is 1.26 V. 1.31 V. 2.62 V. 2.52 V. 1.26 V. 1.31 V. 2.62 V. 2.52 V. ANSWER DOWNLOAD EXAMIANS APP
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