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Two capacitors, of 4 μF and 6 μF are connected in series across a 250 V supply.
(a) Calculate the charge and p.d. across each.
(b) The capacitors are now disconnected from the supply and reconnected in parallel with each other, with terminals of similar polarity being joined together. Calculate the p.d. and charge for each.
A three-phase, 60 Hz induction motor run at 1720 RPM and the following losses are known: stator copper loss =50 watts, rotor copper loss = 65 watts, combined rotational loss = 85 watts
An n+p junction with a long p-region has the following properties: Na=10^16 cm-3, Dp=13 cm2s-1, µn=1,000 cm2V-1s-1, tn=2×10-6 s. If we apply 0.7 V forward bias on the junction at 300 K, what is the electric field in the p-region FAR FROM the junct..
Compute i2(t) through resist R, Find value of w0 for which the amplitude of the current |I2| is maximum, compute I2 for w=w0. compute the ratio of the amplitude of the voltage source over the amplitude of the voltage across the resistor.
Design a low pass active filter that passes frequencies at 900 Hz and below and at these values the magnitude (in dB) of the transfer function is 20+-3(between 23 dB and 17 dB). The circuit's magnitude (in dB) of the transfer function at a frequen..
Develop an algorithm for generating a set of uncorrelated samples having the PSD.- determine the autocorrelation function and compare with the target autocorrelation function.
If the average core loss of the transformers is 0.50%, what is the total annual core loss energy on this feeder?
How the degree of polynomial in continuous path is estimated with its acceleration and velocity.
A charged paint is spread in a very thin uniform layer over the surface of a plastic sphere of diameter 13.5 cm, giving it a charge of -13.9 µC. (a) Find the magnitude of the electric field just inside the paint layer
A step-voltage (a voltage obtained when a battery is turned on) is to be amplified. If the rise time of the amplified step voltage is to be less than 2µs (microseconds), find the amplifier bandwidth.
Let us consider the detection of the framing bit in the T1 carrier by the receiver. Assume that the data bits in a frame assume values of 1 and 0 with equal probabilities of 0.5 and independent of each other. The framing bit alternates between 1 a..
Calculate the maximum deflection angle for calcite based polarization beam deflector. no=1.658, ne=1.486
At the beginning of each year, the cows are divided into three groups. Young heifers (aged 0 to 1 year) make up the first group. The second group consists of cows aged 1 to 2 years, and the third group consists of all cows aged 2 years or older.
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