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1. The open-circuit voltage of a dc shunt generator is 130 V. When loaded the voltage drops to 124 V. Determine the load current.Given: Ra = 0.03 Ω, Rf = 20 Ω
2. A 220 V dc shunt motor runs at 1400 rpm on no-load drawing an armature current of 2.4 A from the supply. Calculate the motor speed for an armature current of 60 A. Assume that the flux/pole reduces by 4% armature reaction. It is given that Ra = 0.24 Ω.
write an 8051 program that would generate a 200khz, 50% duty cycle, square wave at P1.0.Use Timer 0 for the delay. Ignore the overheads cycles due to the instructions in the loop. Assume 12 MHz clock. All data must be hex.
Consider the circuit in Figure. - Determine RC2 such that v2 = -1 V when Q2 is on and Q1 is off. - For vin = -0.7, determine RC1 such that v1 = -1 V.
To calculate the decrease in bandwidth of a n-stage amplifier in comparison to a single-stage one, the -3 dB high and low frequencies are needed. Derive a formula for the low-frequency cutoff of a n-stage amplifier, if the single-stage low-frequen..
Pattern Recognizer (using a state transition diagram in simulink) Consider a Pattern Recognizer that accepts single digit inputs (0-9) each time unit and outputs a NO (or 0) until the pattern 933493 has been seen in the stream of inputs
Assume a receiver is located 10 km from a 50 W transmitter. The carrier frequency is 6 GHz and free space propagation is assumed. Assume the unit gains for the system gains. Find: a) The power at the receiver
Determine the periods and find exponential fourier series coeffecients of functions. A.) f(t) = 2(cost)(cos2t) B.) g(t) = 3 + 2e^-j2t + 2e^j2t + 2cos4t C.) h(t) = 4
The counter should be designed using D flip-flops and using the state equation method. (No credit will be given if the circuit is designed using the excitation table method.) Draw the final logic diagram.
The unit impulse response of an LTIC systems is h(t) = (1- 2t)e^-2t * u(t) Find this system's (zero-state) response y(t) if the input x(t) is: 1) u(t) 2) e^-t u(t) 3) e^-2t u(t) 4) sin(3t) u(t)
What are the rated current and internal generated voltage of this generator? What field current does this generator require to operate at the rated voltage, current, and power factor?
Determine the output voltage with no load across the output terminals. With a 100 k Ohm load connected from A to B, what is the output voltage?
design a full-wave bridge rectifier to deliver 12dc with less than 0.1v ripples into a load drawing 100ma. specify
The conductor, its motion, and is the required length of the conductor? It turns out that in generator design, a conductor of this length is impractical, and we must use N conductors of length 0.1 m. However, by connecting the conductors in series..
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