Electromagnetic Field Theory A waveguide operated below cut off frequency can be used as Phase shifter None An isolator An attenuator Phase shifter None An isolator An attenuator ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which of following can induce the maximum induced voltage ? 1 amp dc. 20 amp dc. 1 amp 1 Hz. 1 amp 100 Hz. 1 amp dc. 20 amp dc. 1 amp 1 Hz. 1 amp 100 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Materials subjected to rapid reversals of magnetism should have low permeability. low hysteresis loss. high permeability. both a and b. low permeability. low hysteresis loss. high permeability. both a and b. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A magnetic circuit requires 800 AT to produce a certain quantity of flux in a magnetic circuit. If its excitation coil has 100 turns and 5 Ohm resistance, the voltage to be applied in exciting coil is 40 V. 60 V. 80 V. 8 V. 40 V. 60 V. 80 V. 8 V. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In a perfect conductor the incident and reflected wave combine to produce A standing wave which is not progressing A stronger reflected wave None of these A stronger incident wave A standing wave which is not progressing A stronger reflected wave None of these A stronger incident wave 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. 145. 150. 250. 225. 145. 150. 250. 225. ANSWER DOWNLOAD EXAMIANS APP
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