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a 10-hp six-pole 60-hz three-phase induction motor runs at 1160 rpm under full-load conditions determine the slip and
a60-hz induction motor is needed to drive a load at approximately 850 rpm how many poles should the motor have what is
we have a six-pole 440-v-rms 60-hz delta connected synchronous motor operating with a constant developed power of 20 h
a radar antenna transmits 50 kw at 10 ghz assume transmission is in a narrow beam 1 m2 in area and that within the beam
consider the common-emitter amplifier shown in figurea draw the small signal equivalent circuit by assuming that the
consider the circuit shown in figure a q-point value for ic between a minimum of 4 ma and a maximum of 5 ma is required
shown in figure is the darlington pair which is equivalent to a single transistor as indicated in the figure assuming
draw the circuit symbol for an n pn bjt label the terminals and the currents choose reference directions that agree
usually transformers are designed to operate with peak flux densities just below saturation of the core material why
a 60-hz 20-kva 8000240-v-rms transformer has the following equivalent-circuit parameters primary
a type of transformer known as an autotransformer is shown in figurea assuming that all of the flux links all of the
question 1nbspusing matlab produce a composite signal of appropriate length containing a cosine wave of amplitude a at
consider the circuit shown in figure p1563a determine the values of i1 and v2b for each of the sources determine the
a transformer is needed that will cause an actual load resistance of 25omega to appear as 100omega to an ac voltage
at a frequency of 60 hz the core loss of a certain coil with an iron core is 18 w and at a frequency of 120 hz it is 56
a certain iron core has an air gap with an effective area of 2 cmtimes3 cm and a length lg the applied magne to motive
consider a coil wound on an iron core suppose that for operation with a given 60-hz ac current the hysteresis loop of
a relay has a 500-turn coil that draws 50ma rms when a 60-hz voltage of 24 v rms is applied assume that the resistance
a symmetrical toroidal coil is wound on a plastic core mur cong 1 and is found to have an inductance of 1 mh what
a 100-turn coil is wound on a toroidal core and has an inductance of 100 mh suppose that a 200-turn coil is wound on a
a 500-turn coil is wound on an iron core when a 120-v-rms 60-hz voltage is applied to the coil the current is 1 a rms
consider the solenoid shown in figure which is typical of those commonly used as actuators for mechanisms and for
two coils wound on a common core have l1 02 h l2 05 h and m 01 h the currents are i1 exp -1000t a and i2 2 exp
what are two causes of core loss for a coil with an iron core excited by an ac current what considerations are
consider the magnetic circuit shown in figure assume that the reluctance of the iron is small enough so it can be