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A coil having an inductance of 6 H and a resistance of R is connected in series with a resistor of 10 to a 120 V, d.c. supply. The time constant of the circuit is 300 ms. When steady-state conditions have been reached, the supply is replaced instantaneously by a short-circuit. Determine: (a) the resistance of the coil,(b) the current flowing in the circuit one second after the shorting link has been placed in the circuit, and (c) the time taken for the current to fall to 10% of its initial value.
Assuming that the scores are normally distributed and the standard deviation for the scores is 80, find the probability that a randomly selected business graduate student at this school has a GMAT score over 700.
If an electron in the hydrogen atom makes a transition from the4th energy level to the second, then what should be the energy ofthe photon that is emitted? Recall, that the Bohr model of the hydrogen atom begins counting the ground state as the fi..
Explain the concept of Envelope detection for Large Carrier AM. Why is Large Carrier preferred over Suppressed Carrier method for Double Sideband AM in broadcast environment.
If we were to use the same number of bits for all symbols in this set, how many would we need for each symbol. In the parts below, assume we are using a compression method that takes advantage of the relative frequency of each symbol.
A total of 3.00 106 electrons are placed on an initially uncharged wire of length 1.44 m. (a) What is the magnitude of the electric field a perpendicular distance of 0.412 m away from the midpoint of the wire
An SSB generator has a 9 MHz carrier and is used to pass voice frequencies in the 300- to 3300-Hz range. The lower sideband is selected. What is the approximate center frequency of the filter needed to pass the lower sideband.
1. Determine the magnitude of the impedance inohms for a 65 mH inductor with excitation at 750 rad/s. 2. Determine the magnitude of the impedance inohms for a 80 mH inductor in series with a 80 ohm resistor.
Determine the transfer function and difference equation of the designed FIR system, and compute and plot the magnitude frequency response for Omega=0, Pi/4, Pi/2, 3 Pi/4, and Pi radians.
Given that, stator iron loss is 2kW, windage and friction losses are 1.2kW and resistance between two stator terminals = 0.4W, for slip s=0.05, mechanical power supplied to the load PL=41.5 kW and Motorefficiency h =82%; Calculate: Line current dra..
Bottled water has come under attack from environmental groups for the amount of waste created by the bottles. How do you feel this concern about packaging waste will impact sales How could the marketing mix elements be used to address this concern
An amplifier with 40 dB of small-signal open-circuit voltagegain, an input resistance of 1M-ohm ,and an output resistance10-ohm drives a load of 100-ohm .What voltage and power gains(expressed in dB) would you expect with the load connected
The capacitors are very large, so they discharge only a very small amount per cycle. (Thus, no ac voltage map pears across the capacitors, and the ac input plus the dc voltage of C1 must appear at point A.) Sketch the voltage at point A versus tim..
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