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A balanced three-phase load consists of delta-connected impedances in parallel with solidly grounded y-connected impedances. Express the currents Ia, Ib, and Ic flowing in the lines from the supply source toward the load in terms of the source voltages Va, Vb, and Vc.
A current of 5A flows through a resistor connected in series with choke coil. It is supplied with 250 V , 50Hz supply . If potential difference across resistor is 125 and across choke coil is 200 volt .
a Three phase to single phase converter employs a 6 pulse bridge circuit. This device is fed from 400V,50 Hz supply through adelta/stare transformer whose per phase turns ratio 3:1. For an output frequency of 2Hz, the load reactance is w0L =3ohm.
Find electric field everywhere produced by two concentrically oriented spheres of radii Ra and Rb (Rb > Ra ) whose volumes are uniformly and oppositely charged to the same amount of charge, Q0.
Write Truth Table of a Half Adder with inputs A and B and output Sum and carry. How many 2-input NAND gates are required to realize this function. If a ROM is used to realize this function what is the size of ROM
Estimate the size and weight of an 1970 automobile using 1970 electronics technology which would have the equivalent computational power and electronics a typical 2013 automobile.
a. Find the mean number of heads in three coin tosses. The coin is biased towards getting tail where the probability to get a tail is 0.8. b. If the number of tosses is 100, what is the mean number of heads
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.
The windings of high-current electromagnets are often made of copper pipe. The current flows in the walls of the pipe, and the cooling water flows in the interior of the pipe. Suppose the copper pipe has an outside diameter of 1.2 cm and inside di..
A modulating signal consists of two sinusoidal components: 1 kHz and 3 kHz. The transmitter carrier frequency is 80 kHz. Assume in a SSB-USB modulated signal that the inserted carrier at the receiver is 200 Hz too high.
1. What is the purpose of core in hollow solder wire 2. What is tinning, and why is it important 3. Why is safety so important when soldering 4. Why has lead-free solder replaced lead-based solder. Be sure to properly cite any sources of information.
Design a bandpass filter of 'Sallen and Key' topology and having the following characteristics fo = 3.3 kHz, Q = 2.2
A microcontroller memory map shows 16K bytes of Flash EEPROM in memory space $C000-$FFFF and 1 K bytes of RAM in memoryspace $1000-$13FF. a- Give the range of addresses (in hex) suitable for locating the code.
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