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Fifteen resistors were randomly selected from the output of a process supposedly producing 10-ohm resistors. The 15 resistors actually showed a sample mean of 9.8 ohms and a sample and a standard deviation of 0.5 ohm. Find a 95% confidence interval for the true resistance of the resistors produced by this process. Assume that the resistance measurements are approximately normally distributed.
How will the reading of two ammeters compare if they are placed in series in a circuit Will the answer to this question be different if the resistance of the two ammeters is not the same
calculate the mmf when the machine operates at rated voltage at full load? PLease explain how to get the solution to this problem?
For the diode that conducts 2mA at a forward voltage drop of 0.3vand whose n=2. Find the equation of the straight line tangent at ID=2mA
Generate an analogous diagram for a closed-loop controlsystem to maintain the water level in a tank that has a singleinlet valve (that can be controlled )and an unknown leak. Anexample of a closed -loop system such as this is the tank on a toilet.
An audio-frequency ideal transformer is employed to couple a 60-Ω resistance load to an electric source which is represented by a constant voltage of 6 V in series with an internal resistance of 2400 Ω.
Consider a network with a driving-impedance Z. (1) Find expression for P and Q. (2) Find p(t) in terms of P and Q. (3) Suppose that the network is a series RLC. Interpret the result in part (2).
Suppose a batch with more than 40% impurities cannot be sold. What is the probability that a randomly selected batch will not be sold?
The transfer function of a system is formulated as H(f)=2f^2+i3f+2. Calculate the output signal for the input signal below which was applied to this system Vin(t)= 5+2cos(20(pi)t+30degrees)+sin(10(pi)t)
Compute the system's transfer function and the solution of the differential equation when the input x(t)=2 *u(t). An LTI (linear, time invariant)instrument has the following impulse response: h(t)=[2*e -2t -e -t] *u(t)
Determine the value of capacitor which when connected in series with a 2 nF capacitor produces a total capacitance of 1.6 nF.
The per-phase impedance of a 600-V, three-phase, Y-connected synchronous motor is 5 + j50 Ω. The motor takes 24 kW at a leading power factor of 0.707. Determine the induced voltage and the power angle of the motor.
Calculate the THD and Dynamic range for each case assuming ideal digital to analog conversion: i. N = 30 converter bits ii. N = 60 converter bits iii. N = 90 converter bits
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