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What is the 555 timer ? and what is Working Principle of it ? wiht explanation of the 8 pins of 555 Timer
A dc shunt motor drives a centrifugal pump at a speed of 1000rpm when the terminal voltage and the line currents are 200V and 50A, respectively. The armature and field resistance are 0.1 ohm and 100 ohm respectively.
A 150 MVA, 24 kV, 123% three-phase synchronous generator operates with an induced voltage that is twice the rated line-to-neutral voltage. Calculate the three-phase steady-state short-circuit current at the generator terminals.
A 120 V(rms), variable frequency source is connected in series witha 100 ohm resistor and a 100uF capacitor . Find the input power to the cirtcuit from the source at th frequency where the power factorof the load is 0.75
Design a 3.3V power supply decoupling circuit using Kemet Spice with the following specifications: Impedance of the decoupling circuit is less than 1 ohm between 100KHz and 10MHz and is less than 10 ohms between 10MHz and 3 GHz.
Suppose the voltage across a telephone line at the subscriber drops from 48V to 10V when the phone goes off hook. If the telephone instrument has a resistance of 200 ohms when off hook and represents an open circuit
A shunt motor has the following ratings: 75 kW, 240 V, 1750 rpm, 300 A. The motor is supplied with 240 V source (constant) at its armature terminals. Its armature resistance is 0.0144 [O]. At rated current Ia = 300 A, the motor runs at rated speed..
the -3 dB frequency for low pass Butterworth filter is 2.5 kHz. The stop band begins at 3.8 kHz, with an attention of 35 dB. Determine the minimum order of the filter if the sampling rate is 8 kHz
a) Identify the geometric shape that is formed by plotting the above equation. b) Draw the geometric shape defined by the above equation. c) What is the centerand radius of the shape defined by the above equation
It has a clock speed of 3.2Ghz. It executes a program with 1.8 billion instructions in 1.4 seconds, devoting 90% of the CPU's time to the program. What was the actual achieved issue rate of instructions per cycle
determine whether a three bit number , a3,a2,a1 is equal to another number b3,b2,b1 or if it is greater than that number (We do not need an output for less than) a)Show how the 7485 would be connected to accomplish this.
A chopper controlled electric train is powered from a 1500 VDE supply. The power semi- conductor switch element hasaminimum effectice ON time of 40 Ms. during starting and slowspeed running, the output of the chopper has to go as low as 15 V.
At 2GHz, a certain material has εr=2.5,μr=1, tanθ=10-2. Calculate the distance a uniform plane wave can travel through the materialbefore a) its amplitude is reduced by 20%, b) the phase shiftsby 180 degrees, c) the power is reduced by 10%.
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