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1. A technician reads 240 V across the thermal overload to the first strip heater on an electric furnace. What does this mean?
2. List three ways of checking an overload in an electric furnace.
3. What should always be checked when replacing an overload?
Derive an expression for the sensitivity of an APD receiver by taking into account a finite extinction ratio for the general case in which both shot noise and thermal noise contribute to the receiver sensitivity. You can neglect the dark current.
At what frequency does an RC low pass filter attenuate by 6dB(output voltage equal to half the input voltage) What is the phase shift at that frequency
Electric field and potential of point charge in the presence of conductors and dielectrics. In the spherical geometry in Figure 4.69 find the electric filed intensity and potential at point P.
what is the purpose of the compensating gauge?
Find the PSD of the output process, - the total power in the output process, - the noise equivalent bandwidth of the integrator (filter).
Find the attenuation constant alpha, the phase constant beta, and the phase velocity u if the conductivity of the material sigma=(omega)(epsilon), the material parameters are Ur=1, epsilon r =2.5, and the wavelength in free space is lamda naught =..
Suppose X has a continuous uniform distribution over the interval [-1, 1]. (a) Determine the mean, variance, and standard deviation of X. (b) Determine the value for x such that P(fx
Determine the Fourier series coefficients for the following discrete-time periodic signal. Plot the magnitude and phasefor each set of coefficients ak x[n] = sin(2πn/3)*cos(πn/2)
Design a preamplifier system that can amplify the output of a microphone and produce a 1 V peak signal over a frequency range from 10 Hz to 15 kHz.
Determine the unknown voltages for each circuit - calculate the voltage gain for each stage and the overall voltage gain. Assume the op- amps to be ideal.
Draw a state transition diagram for an FSM capable of solving this problem.
Four equal resistors are wired in series to a 40 V source. - How much does the voltage drop at each resistor?
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