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An electron is released from rest at a distance of 0.350 m from a large insulating sheet of charge that has uniform surface charge density 4.90×10^-12 C/m . A) How much work is done on the ele
a 1.5 V battery will deliver 9mA for a continuous 38 hrs. during that time the voltage drop will be from 1.5 to 1.0 V. Assume the voltage drop is linear. How much energy does the battery deliver ove
Consider the function F = x · y + x(not) · z. a) Expand the function to its canonical or standard sum of products (SOP) form. b) Express the function in its canonical or standard product of sums (POS)
Design a 0-1-2-3-0 counter circuit using flip flops. Flip flop A (most significant bit) is to be a T flip flop and Flip Flop B (leats significant bit) is to be a D flip flop.
A certain antenna installation using a transmitting frequency of 1250 kHz uses an insulated vertical tower of height 200 feet. For a 25 kW transmitter power, calculate the electric field strength at
A current of 1600 A exists in a rectangular (0.4-by-16cm) bus bar. The current is due to free electrons moving through the wire at an average velocity of v meters/second. If the concentration of fre
A 10 microFarad capacitor is in series with a 100 ohm resistor, a switch, and a 10.0 volt battery. At time t = 0 seconds the switch is closed. What is the current in the resistor at time t = 0.1 micro
The armature resistance and series field resistances are 0.06-ohm and 0.04-ohm respectively. If current taken remains same, calculate the series resistance required to reduce the speed to 600 rpm.
given a triangular plane in the coordinate plane slanted with a surface bounded by the closed path. how to find the magnetic flux in that plane
A dc current of 200 mA is switched into a circuit at t=0 write the expression for the circuit i(t) and sketch it A dc voltage of 12 V is switched on at t=5 s, write the expression for the circuit e(t)
If natural gas use steadily increases by 6 percent every year and in 2009 the United States consumption of natural gas was 21 Quads, how much natural gas will be consumed annually in 12
A transmission line segment with Zo=50 Ohms and of length l is terminated at a load resistance of RL that can be varied. Sketch the input impedance Zin as a function of RL if l=(wavelength/4)
A transmission line segment with Zo=50 Ohms and of length l is terminated at a load resistance of RL that can be varied. Sketch the input impedance Zin as a function of RL if (a) l=(wavelength/4) an
An open-circuited 50 Ohm microstrip transmission line is used in a microwave amplifier circuit to provide a capacitance of 3.2 pF at 2.3 GHz. (a) Find the appropriate electrical length of the line a
A 1(lambda) wavelength long line has parameter R=0.2 Ohm/m, G=0.002 mho/m, L=15 muH/m and C=2.31pF/m. The line is operated at a frequency f=2.5 GHz. It is terminated with a load impedance of 100 Ohm
Let O be a measurement operator for the of dots facing upwards on a 6-sided 'quantum' die-- a die that can be put into superpositions of states and then measured. The set of possible outcomes is {1,
A flyback converter is to be designed to provide 10V at 18A from a smooth 200V source. Isolation between the input and output is required. The switching frequency is 200kHz and the duty cycle is 0.4
The heater element of an electric kettle has a constant resistance of 100 Ω ohm and the applied voltage is 250 V. Calculate the time taken to raise the temperature of one litre of water from 1
Determine which of these properties hold or don't hold for the following discrete time systems. Justify your answers. IN each example, y(t) denotes the system output and x(t) denotes the system inpu
given a "black box" with two terminals. You play around with the box for awhileand make the following observations: (i) The output voltage from the box is sinusoidal. (ii) The peak magnitude of the op
The DC machine rotates at 1500 RPM and it delivers rated current at rated terminal voltage. The field winding is connected to a 120 V supply. Find the value of the field current and the value of R (
The battery voltage is 20V Resistor3 a resistance of 20ohms. Resistor1 has a resistance of 30. Current flow is 250mA through the circuit. What is the resistance of resistor 3
Considering an ideal transformer with impedance on the secondary, neglecting the winding resistances, leakage inductances and the core loss. N1/N2=3 For a voltage of 120V (rms) at a frequency of 60
a DC series machine ( 9.25 kW, 185 V, 1500 RPM) has Ra+Rsr = .3 ohms. The data for the magnetization curve are: Ia 0 10 20 30 40 50 60 Ea 10 50 106 156 184 200 208 Determine the terminal voltage at Ia
A 10-mV signal source having an internal resistance of 100 k Ohm is connected to an amplifier for which the input resistance is 10 k Ohm, the open-circuit voltage gain is 1000 , and the output resis