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A hoist is fitted with a protective device which operates at a height of 2.0 m. Above 2.0 m the protective device inputs logic 00 to the controlling microprocessor system. As the hoist descends towards the 2.0 m limit, the input changes to logic 01. Should the hoist descend past the 2.0 m limit, the input returns to logic 00. Write a program that continually checks the state of the input signal at 001 and which outputs the byte 20 (which stops the hoist) at 00 after the protection device input has changed from 00 to 01 and back to 00.
If V = 12sin( 2 pi 1800 + 45). What would you read on a DMM Would this voltage be for an inductor or capacitor What would be the frequency and phase What does the 12 stand for Explain.
Consider a CS amplifier with a resistance Rs in the source lead and with the drain short-circuited to ground. Determine the short-circuit transconductance G m. Hence provide the output equivalent circuit of the source-degenerated CS amplifier
Design a synchronous sequential circuit with one input line and one output line that recognizes the input string x = 1111. The circuit is also required to recognize overlapping sequence such that if the input string is x = 1101111111010
Design and draw a ladder diagram circuit suitable for a PLC which will fulfil the control requirement - Explain briefly the technique of multiplexed switching of analogue signals.
An infinitely long wire is placed in a space with relative permeability of 9000 carrying current of 1.9 A in the +y direction. What is the magnitude of the magnetic flux density at (0.03,0,0) [meters] in units of Tesla
A transducer produces a sinusoidal waveform with an amplitude of 2.5 VPK and a DC offset of 0 VDC. The ADC input signal range is 0 V to 5 V. Describe the signal conditioning circuit that is needed to use the full-scale range of the ADC.
Magnetic ?eld is a vector quantity {vector B}, therefore, it has two components to represent it: Magnitude {B}, and direction.
How does a transistor switch compare to a mechanical switch. In other words, a mechanical switch when it is ON has zero impedance. What about the transistor switch.
Given a parallel RC circuit with input voltage Vs, resistance value of R, capacitance value of C, and Vo taken across the capacitor. For this circuit, Vo/Vs=1/(jwRC+1), so the gain is 1 V/V. Is there any way to modify this circuit to make the gain..
ABC is a scalene triangle of sides a,b,c. At the vertices A,B,C infinitely long current filaments pass at right angles to the plane of A,B,C. Determine the magnetic field at the cross section of medians
When calculating the bending stress of a rectangular plate, one must use the section modulus about the neutral axis of the plate. This axis is at the center of the plate where there is neither tension nor compression.
construct a simple SR latch using push-buttons for inputs and l.e.d.s for outputs. Describe the timing of output changes with reference to input changes. ON THE SAME PAGE, construct a simple clocked D-type clocked flip-flop, again using a push but..
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