(a) Find the equivalent resistance Req of the circuit. (b) Draw the simplified equivalent circuit. (c) Solve the circuit. That is, find all unknown currents, resistances, and voltages. 7.
EC2351 MEASUREMENTS AND INSTRUMENTATION L T P C 3 0 0 3 UNIT I BASIC MEASUREMENT CONCEPTS Measurement systems – Static and dynamic characteristics – units and standards of measurements – error :- accuracy and precision, types, statistical analysis – moving coil, moving iron meters – multimeters – Bridge measurements : – Maxwell, Hay, Schering, Anderson and Wien bridge. UNIT II BASIC ELECTRONIC MEASUREMENTS Electronic multimeters – Cathode ray oscilloscopes – block schematic – applications – special oscilloscopes :– delayed time base oscilloscopes, analog and digital storage oscilloscope, sampling oscilloscope – Q meters – Vector meters – RF voltage and power measurements – True RMS meters. UNIT III SIGNAL
B,C,D Key Terms: Electrical circuit - an electrical device that provides a path for electrical current to flow. Frequency - The cycles per second of alternating current, measured in Hertz. Amplitude - The maximum difference of an alternating electric current or potential from the average value. Phase - Is a position of a point in time on a waveform cycle. Bit time - the time it takes for one bit to be ejected from a Network Interface Card at a standard speed.
School of Engineering and Physical Sciences Electrical and Electronic Engineering Praxis Electronic Design B37VA Assignment 1 Ohm’s Law Name: Ruqayyah Merchant Student Id: Lecturer, Electrical and Electronic Engineering: Dr Mutasim Nour Ohm’s Law Abstract: The dynamism of Ohm’s Law for a simple resistor circuit is examined and verified. The equivalent current and equivalent voltage data across the circuit is accumulated and compared to the theoretical values calculated using Ohm’s Law equation. Eventually the deliberate results are presented in scatter plots. Introduction: A close logical examination of Ohm's experimental work reveals a conceptual structure quite different from that of the electrical science of his time. As a result of this analysis, it is claimed that the conceptual shift in Ohm's experimental work was the basis for the reaction of his contemporaries.
Calculate the impedance by the measured values of voltage and current from the oscilloscope. Also calculate the impedance from = − C. Answer: Impedance, Z = 5∠0 34.65 60.48°) = 173.25 - 60.48⁰ = 85.37 Ω - j150.76 Ω Again, XC = 1/ = 1/ (6280 x 10-6) = 159.24
C. 0.853 s D. 0.925 s Don't panic. Use the calculated settings for Relay A, and calculate the response time of relay A for a fault current of 8075A. i.e. PSM=8075/(ES A), then get t(TSM=1pu), then multiply this time by the set TMS A to get the required response time of relay
Substituting equations 2.a and 2.b into equation 1 and rearranging terms yields: (3) The flux Jacobian matrices, A and B, are as follows: The eigenvalues for A and B are respectively, where and . From reference (2) and In terms of the eigenvalues, where and ; and similarly for the flux vector. To satisfy the Fortran 90 first order upwind scheme the E, F, A, and B flux matrices need to be split in terms of positive and negative eigenvalue cases. There are 4 cases, they are the following: Case 1: All eigenvalues are negative Case 2: All eigenvalues are negative (except
Usually the experimenter adjusts the direction of the three forces, makes measurements of the amount of force in each direction, and determines the vector sum of three forces. Forces perpendicular to the plane of the force board are typically ignored in the analysis. In order to complete this lab we used a force table, accessories, level,standard weights. And weight hangers. In order to complete the first lab we had to level the table and connect the rings to the pulleys.
PHYS 222 Worksheet 5 – Electric Potential Supplemental Instruction Iowa State University Useful Equations Leader: Course: Instructor: Date: Alek Jerauld PHYS 222 Dr. Paula Herrera-Siklódy 1/24/12 Wab (Ub U a ) qq U k 0 r q U kq0 i i ri U q V k q0 r q V k i i ri dq V k r Work done by a conservative force Electric potential energy by two point charges q and q0 Potential energy of charge q0 due to the collection of charges qi Potential due to a point charge. Units: [ 1 V = 1 volt = 1 J/C] Potential due to a collection of point charges Potential due to a continuous distribution of charge Potential difference as an integral of E E in terms of V. E is the gradient of V. Vb Va E dl a b E V Diagrams
(in.) 0.3120 +0.005 0.3615 +0.005 0.5505 +0.005 Reduction of area (%) 45.74+0.1 58.63+0.1 48.25+0.1 1 Purpose: The purpose of this experiment is to extract data on the material properties of three “505” specimens (SAE 2011-T-3 aluminum, 1081 hot rolled steel, and PVC plastic), using a mechanically driven universal testing machine (UTM). These material properties include the following: the elastic modulus, 0.2% offset yield strength, ultimate tensile strength, modulus of rupture, modulus of resilience, as well as true strain and true stress at the point of rupture. Theory: Certain materials (those that are linear, homogeneous, elastic, and