Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
an industrial load is connected across a three-phase y-connected source of 45 kv line-to-line the real power of the
a dc motor is driving a constant-torque load if the armature voltage of the motor increases by 20 calculate the
a 200v dc motor is loaded by a constant torque of 10 nm the armature resistance of the motor is 2omega and the field
an industrial load is powered by purely sinusoidal voltage source the load current has a thd of 20 and the power factor
a half-wave scr converter circuit is used to regulate the power across a 10omega resistance when the triggering angle
an acdc half-wave scr circuit is used to energize a resistive load at a triggering angle of 30deg the average voltage
a full-wave scr converter circuit is used to regulate the power across a 10omega resistance the voltage source is 120v
a 120v full-wave scr battery charger is designed to provide 10a of charging current the battery has 1omega internal
a full-wave acdc converter is connected to a resistive load of 5omega the voltage of the ac source is 120v rms if the
a boost converter has a source voltage vs20v and a load resistance r10omega if the duty ratio of the transistor is 50
a buck-boost converter has an input voltage of 30v the switching frequency of its transistor is 5khz and its duty ratio
a buck-boost converter with an input voltage of 40v is used to regulate the load voltage from 10 to 80v the on-time of
the load of the full-wave scr circuit in figure 1023 consumes 130w the rms voltage across the load is 80v and its
for the transistor in the previous problem compute the load power and the efficiency of the circuit when the transistor
compute the resistance of a 10m wide stretch of soil that is 2m away from the edge of a grounded hemisphere the radius
repeat problems 3 and 4 for wet organic soilproblems 3a person is working on a steel structure while standing on the
during a weather storm an atmospheric discharge hits a lightning pole the pole is grounded through a hemisphere the
during a weatherstorm an atmospheric discharge hits a lightning pole that is grounded through a hemisphere the maximum
repeat the previous problem and assume the person is 5m away from the center of the hemisphere what is the effect of
a power line insulator partially fails and 10a pass through the structure to the towers ground the towers ground is a
an electric circuit is powered by unpolarized 120v 60hz outlet the circuit is inside ungrounded chassis a 100nf
an industrial electric circuit is powered by a two-prong polarized outlet through a feeder the resistance of the
consider the system where the neutral and ground wires are bonded at the customers side assume that the neutral wire
the current and voltage waveforms of an electric circuit arecompute the followinga the rms voltageb the rms currentc
the waveform of an ac voltage can be expressed by v180 sin300t 3a calculate the rms value of the voltageb calculate