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How do the phase angle and current change as the resistance changes in a circuit where the frequency stays constant How do these results differ from those in the case wehre the resisntace stays the
The known quantities in given series RL circuit are asfollows: resistance equals 8-ohm, inductive reactance equals 39?current equals 3A, and the applied voltage is 120- volts 60 Hz.Determine the fol
A rectangular patch has length 13 cm and width 0.8*13 cm and is supported by a dielectric substrate with relative permittivity 4. What is (approximately) the resonance frequency (in GHz) of the patc
a small cocentration of minority carrier is injected into ahomogeneous semiconductor crystal at one point. An electric feild of 10 V/cm is applied across the crystal and this moves theminority carri
a- compute the slantdeay from the dual frequency code measurement (5.3) from eachsatellite b- determin the corresponding satellite position c- usethe pigeon point position file to determine the sate
Determine the ionospheric zenith delay from dual-frequency measurement over a 24-hour period and observe the variabilty as afunction of local time. use the data set: the solar cycle was closeto to i
A particular load has a pf of 0.8 lagging. The power deliveredto the load is 40 kW from a 270-V rms 60-Hz line. What value ofcapacitance placed in parallel with the load will raise the pf to0.9 lagg
A current of 2 A flows through a slab of tin, 1 mm thick and 2mm wide, whose conductivity is 106 1/Ωm. Calculate the voltage drop between twopotential probes that are 10 cm apart along the slab.
Why is the "drop out" current less than the "pick up " current in a relay and why is this an important and common feature in a relay
Designa three-bit up/down counter using D flip-flops. It should include acontrol input called Up/Down. If Up*/Down = 0, then the circuit should behave as an up counter. If Up*/Down = 1, then the cir
Draw an accurate phasor diagram of the four voltages from the R-L-Ccircuit. Derive three expressions for the phase angle between Vsand Vr from the phasor diagram.
Design a circuit that outputs 0 volts when the input is above2.5volts, and outputs 5 volts when the input is below 2.5 volts.You may use power supply voltages of +10V, 0V and -10V. Be sureyour circu
Assume that the largest decoder that can be used in an m x1RAM chip has 14 address inputs and that coincident decoding isemployed. In order to construct RAM chips that contain more one-bitwords than
A 1GB DRAM uses 4-bit data and has equal-length row and column addresses. How many address pins does the DRAM have?
A circuit consists of two impedances, Z1=20/_30 ,Z2=14.14/_-45 , in parallel, supplied by a sourcevoltage V=100/_60. Determine the power triangle for each of the impedances and for the source.
A full wave center-tapped transformer rectifier ina power supply provides an average dc output voltage of 14V onwhich a maximum ripple of ±0.5 volt is allowed. Diodeshave a 0.7 Volt drop when
Consider two three-phase transformers, the first transformerhas a delta connection on its primary side and a wye connection onits secondary side; whereas, the second transformer has a wyeconnection
A power factor correction capacitor bank, with negligible resistance, draws a current of 625 amperes whenconnected to its 480 VAC, 60 Hz source. Calculate the capacitive reactive power of the capaci
A student designs a zener shunt regulator to produce a regulatedoutput of 10 V using a zener diode specified to have a 10V drop ata test current of 25mA. Incremental resistance of the zener is 10ohm
1)how would two 50μF capacitors be connected to provide atotal capacitance 100μF. 2) Determine the total capacitance and maximum voltage rating for two 220μF, 300-V capacitors connected in se
Design three versions of the combinational circuit whose input is a4-bit number whose output is the 2's complement of the inputnumber, for each of the following cases: a) The circuit is a simplified
a. Write an ARM assembly language instruction that uses the BIC instruction to clear bits 16-23 in R7 g. Show how you would schedule the three instructions MULT R2, R2,R1; ADD R2, R3, R2; and SUB R8
a) construct a moore state table for a sequential circuit that has an input (x) and an output (z). the output is the sameas the input was two clock periods previously. for example x = 0 1 0 1 1 0
Three parts of asingle-phase electric system are designated A,B and C and areconnected to each other through transformers. Neglect transformerresistance and magnetizing current. The transformers are
A single phase transformer rated 1.2kV/120V, 7.2kVA hasprimary-referred parameters Req= r1+ a r2= 1Ω andXeq = x1+ a2 x2 =4Ω when neglecting exciting current. At rated voltage itscore los