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A separately excited DC generator,when running at 1200 RPM, supplies 200A at 125V to a circuit ofconstant resistance. What will the current be when the speedis reduced to 1000 RPM if the field current remains unchanged? The armature resistance is 0.04 ohms and the totalvoltage drop across the brushes is 2 volts.
A resistor on a Wheatstone bridge is replaced with a strain gage which has a nominal resistance of 120 Ohms and a gage factor of 2.06. The remaining resistors on this quarter-bridge Wheatstone bridge circuit are 120 Ohm fixed resistors.
Determine the normalized impedance at λ/8 from the load if (a) its normalized impedance is 2 +j, (b) its normalized admittance is 0.2 - j0.5, (c) the reflection coefficient at load is0.3 + j0.4.
Suppose it is known that an analog signal varies between -3V and + 3V, but we require the range of this signal to be changed so that it varies from 0 to 5V in order to meet the input range of an analog/digital converter circuit.
A. Determine the transfer function H(z) for this system. B. Determine the z transform Ys(z) of the step response for this discrete time LTI system using complex domain (not time domain) analysis techniques.
A circuit consist of two impedance,Z1=50/_45 ohms and Z2=25/_30 ohms, connected in parallel. They are supplied by a source whose voltage is V=50/_0 volts. Determined follows 1. the current drwan by each impedance
An infinitely long shell with a cylinder shape extends between r = 1m and r =3m has a uniform charge density ρ. Apply gauss's law to find D in all regions.
A zippy little electric car is equipped with a 175hp motor. a) How many kW are required to run the motor if we assume ioo percent efficiency in converting electrical power to mechanical power
Show how to wire the two gauges and two fixed 150 W resistors into the bridge circuit to provide temperature compensation, using the graphs given on the right. The plastic tube has an outer diameter of 3 cm and an inner diameter of 2.3 cm.
A full-wave rectifier is to be designed using the bridge circuit configuration. The peak output voltage is to be 9 V, the nominal load current is to be 100 mA, and the ripple voltage is to be limitedto Vr= 0.2 V.Assume Vγ= 0.8 V and let vI= 120√2s..
a) What is the velocity of the particle b) If this velocity is known to within 0.2% accuracy, what is fx of the position that particle? Assume that the mass of the particle is 2 x 10-26 kg.
A state diagram for a particular finite state machine requires a total of 130 states. What is the minimum number of binary digits required to encode these states uniquely. This is actually the minimum number of flip-flops that can be used to imple..
For a transfer function with a pair of complex zeros located on the j (omega)-axis, what happens to the frequency response as the frequency applied to the system approaches the value at which the zeros are located
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