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A box contains 'm' white balls and 'n' black balls.Balls aredrawn at random one at a time without replacement. Find the probability of encountering a white ball by the kth draw.
Using a 7490 decade counter, design a circuit to count from0 through 9 and display the values on a seven-segment display Produce a logic diagram for circuit.
Group and phase velocity in uniaxial crystals: a. Derive an expression for the group velocity of the extraordinary wave in a uniaxial crystal as a function of the polar angle of the propagation vector.
With an unknown focal length lens, they are able to capture a zoomed in image of an iris (1 cm in diameter) which is 200 pixels wide in the final image. Their current image sensor is 640x480 resolution (old technology). The pixel size is 20 micron..
Thesignal x(t)=u(t-1)-u(t-3) is the input to an LTI systemwith the impulse response h(t)=u(t-5)-u(t-8)The system is initially atrest. (a)Compute the output y(t) of this system using convolution. Make asketch of y(t)
Design a circuit that can perform BCD addition on two decimal digits. You don't have to design any of the major components you may use (such as adders, comparators, etc.). Assume all those components are available.
Design and sketch a current source that delivers 1uA to a load. The sum of all resistors used should be
A 1500 hp phase ac motor load has a power factor of 0.7. What capacitor (in Farads) is required to correct the power factor to 0.90 if the line voltage is 2400 volts The capacitor bank is to be delta connected.
A 340 V, 6 pole dc Shunt motor has the following parameters: Rating: 35 kW Current: 122 A Speed: 1000 rpmArmature resistance: 0.35 Ohm Sunt field resistance: 150 Ohm Friction&Windage loss: 1.2 kW
At a certain location, the horizontal component of the earth's magnetic field is 3.70 10-5 T, due north. A proton moves eastward with just the right speed for the magnetic force on it to balance its weight. Find the speed of the proton.
A commutator motor with its armature supplied from variable voltage source. As the voltage is varied from 0 to 600V,the drive speed varies from 0 to 1600rpm, the field flux isconstant, all losses-ignored.
For the difference equation below, find the impulse response by first solving without any transforms. Assume sequence is zero-valued for n
The high-voltage windings are connected in Y with a solidly grounded neutral. Draw the per-unit zero-, positive-, and negative-sequence networks if the low-voltage wind- ings are connected: (a) in D with American standard phase shift
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