Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
How much resistance is required to limit the current to 1.5 mA, if a 6v battery is connected across the resistance
Show that a BCD ripple counter can be constructed from a four-bit binary ripple counter with asynchronous clear and a NAND gate that detects the occurrence of count 1010.
Design a timing circuit which provides an output signal that stays on for exactly eight clock cycles. A start signal sends the output to the 1 state, and after eight clock cycles the signal returns
a) if x(t) is even, show that its Fourier transform is real for all w (i.e: its imaginary part is identically 0) b)if x(t) is odd, show that its Fourier transform is imaginary for all w (i.e: its real
Assuming interest at 8% compounded anually and insurance at 6% of book value, determine the annual usage in hours per year for which the two alternatives are equal. If annual usage is expected to be
(a) triple frequency currents from flowing inthe main lines of the power system; (b) while still providing a time sinusoidal flux linking the coils of each phase of the secondary to produce sinusoid
A voltage of 6e-2000t V appears across a parallel combination of a 100-mF capacitor and a12 ohm resistor. Calculate the power absorbed by the parallel combination.
A DC motor, fed trough a four-quadrant chopper, works as a motor in thethird quadrant (reverse motion). The main data are Vo =120V, Ra = 0.5-ohm, La = 2.5mH, rated currentIan = 20A; rated speed nn =
construct the state transitiontruth table choosing a FF of your choice. determine the logic to drive the input or inputs of the least significant flip flop of your circuit.Show the karnaugh map or bo
Design a 10-to-4 encoder with inputs in the1-out-of-10 code and outputs in a code like normal BCD except thatinput lines 8 and 9 are encoded into "E" and"F", respectively.
The output is Z=1 if and only if the total number of 1's received is divisible by3 (0,3,6, ...) and the total number of 0's received isan even number greater than zero. (Hint: The minimum number of
A sequential circuit has two inputs and two outputs. The inputs (X1X2) represent a 2-bit binary number, N. If the present value of Nis greater than the previous value, then Z1=1. If the present valu
A finite state machine has one input (X) and two outputs (Z1 and Z2).An output Z1=1 occurs every time the input sequence 101 is observed,provided the sequence 011 has never been seen. An output Z2=1
Design and implement a digital circuit which will accept a 4-bit binary number and produce its equivalent hexadecimal number using seven-segment display. That is, when the switches SW1, SW2, SW3, SW
Two industrial plants represent balanced three-phase loads. The plants receive their power from a balanced three-phase source witha line voltage of 4.6kV rms. Plant 1 is rated at 300kVa, .8 PFlaggin
Determine the thermal equilibrium concentrations of electrons no and holes po in uniformly doped silicon for the following conditions: a) T=300 degrees K, Nd=2x10^15 cm^-3, Na=0 b) T=300 degrees K, N
You have a 10 meter length of .5 cm diameter Nichrome wire. A24 VDC voltage is to be applied to it. The initial wire temp is 70degF. The final wire temp is 200 degF. What ids the initial currentand
Two capacitors one is 10pf the other is 25pf are connected in series and you want to replace them with a single capacitor with the following dimensions : area = 4cm2 plate seperation distance is 2 c
Use the fourh order trial solution of Wx=C0+C1x+C2x2+C3x3+.....to calculate the large deflection behaviour of an initially unstressed doubly clamped beam with a point load at its center.
Design a 2-bit count-down counter. This is a sequential circuit with 2 Flip-Flops and 1 input x.When x=0, the state of theFlip-Flops does not change.When x=1,the state sequence is11,10,01,00,11 and
Also, if the cursorreaches the end of the screen it should wrap around to the otherside of the screen. If no direction is designated, the cursorshould stay put. Also, the system should show the dir
An abc-phase-sequence three phase voltage source connected in abalanced wye supplies power to a balanced delta-connected load. Theload current Iab = 4<20°Ampheres rms. Determine the line curr
A digital system has three registers AR, BR, PR. Three flip flops provide the control variables for the system: S is a flipflop that is set by an external Start signal to start theoperation, and F a
a dc series with an unsaturated field and negligible resistance, when running at a cirtain speed on a given load takes 50A at 460V. If the load -torque variase as the cube of the speed. Calculate th
Metal sphere 1 has a positive charge of 8.0 nC. Metal sphere 2, which is three times the diameter of sphere 1, is initially uncharged. The spheres are then connected together by a long, thin metal w