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The magnetic circuit shown in Fig. P.2.8 has a coil of 500 turns wound on the central limb which has an air-gap of 1 mm. The magnetic path from A to B via each outer limb is 100 cm and via the central limb 25 cm (airgap length excluded). The cross-sectional area of the central limb is 5 cm × 3 cm and that each outer limb is 2.5 cm × 3 cm. A current of 0.5 A in the coil produces an air-gap flux of 0.35 mWb. Find the relative permeability of the medium.
what is the smallest positive number in the single precision ieee standard? what is the largest positive number in
Give an example of waveform of sampling pulse. What are the parameters of IC LF 398? What is resolution of a DAC? What is accuracy of a DAC? Explain what is linearity of a DAC. What is settling time of a DAC? Name some of the counter applications.
suppose that you have a balanced stereo signal in which the left and right channels have the same voltage amplitude 500 mVpp. This time, however, you want to be able to mix these two channels into a single inverted output
For a transformer with a line voltage of 34.5 KV on the primary and a line voltafe of 480V. Calculate Vphase primary and secondary,P,Q, and S for each of the following transformer connections and loads.
Two coupled coils have self-inductances L1 = 50 mH and L2 = 200 mH, and a coefficient of coupling k = 0.5. If coil 2 has 1000 turns, and I1 = 5Sin (400t) (i.e. the phasor current is 5? -90° A). Find the voltage at coil 2 and the flux through coil ..
There are two printers and two I/O ports available in a system. Process A is using an I/O port and is waiting for a printer. Process B is using a printer. Process C is using a printer and is waiting for an I/O port.
If the two currents are doubled, is the point of zero magnetic field shifted toward wire 1, shifted toward wire2, or unchanged?
An adder for Gray-coded-decimal digits is to be designed using a ROM. The adder should add two gray-coded digits and give the Gray-coded sum and a carry. For example, 1011 +1010=0010 with a carry of 1 (7 + 6 = 13).
Construct the adder for 2 digit decimal numbers presented in BCD code. 4 bit binary adders and additional logical gates. The BCD adder for each decimal digit can be implemented with two 4 bit binary adders where the second adder.
Let S measure the time-dependent strength of a material under test and So is the initial strength as measured at the beginning of test. Prior tests and evaluations have suggested that the following stress-time relationship appears to work.
Find the general solution of the following sets of ordinary differential equations using matrix technique. You may find the eigenvalues and eigenvectors either by hand or use MATLAB.
Why star delta starter is preferred with induction motor? State the difference between generator and alternator. Why AC systems are preferred over DC systems? How can you relate power engineering with electrical engineering? What are the various kind..
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