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Lect09
Lect09

... Because the wire is slightly longer, R ~ L A is slightly increased. Also, because the overall volume of the wire is ~constant, increasing the length decreases the area A, which also increases the resistance. By carefully measuring the change in resistance, the strain in the structure may be determin ...
LAB 4 Series & Parallel Circuits
LAB 4 Series & Parallel Circuits

... a. Predict and measure the voltages v1, v2, and v3 using the VDR with the measured resistor values. How do they compare? b. Predict and measure the source current using the equivalent resistance and Ohm’s law. How do they compare? c. Measure the current before and after the 100Ω resistor. Was any cu ...
Testing equipment specs
Testing equipment specs

... 6m long, the test set shall be supplied with pair of test leads 8m long and consisting of 2x 120 mm2 or equivalent flexible copper cables. NOTE: After sale service: The supplier must ensure and provide information regarding after sales service and the availability of spares and consumables in Pakist ...
Electric current is measured in units called amps
Electric current is measured in units called amps

File
File

Unit 2 Test - hhs-snc1d
Unit 2 Test - hhs-snc1d

... Four friends challenge each other to a run around a park. Tommy has four granola bars in his backpack, so he gives each runner one bar and some water. Full of energy, they then set off on their run, running over a big hill, then a hill only half as big, and then around some trees and back to their s ...
CURRENT, RESISTANCE, AND ELECTROMOTIVE FORCE
CURRENT, RESISTANCE, AND ELECTROMOTIVE FORCE

Kertas 1 - WordPress.com
Kertas 1 - WordPress.com

Electric Charge
Electric Charge

Electric current
Electric current

... Flow Water ...
click here
click here

... experiments aimed at determining the optimum driving source impedance. This amplifier is undoubtedly compromised by the modest Q of the input inductor. The SMT trimmer capacitor is also subject. But 1.5 dB will be more than adequate for 50 MHz applications. There should be no difficulty in obtaining ...
Bipolar Junction Transistors (BJT)
Bipolar Junction Transistors (BJT)

... Transistor terminal voltages: VC , VC , VE Voltages across transistor junctions: VBE , VCE , VCB All of these voltages and their polarities are shown on Figure 5 for the npn BJT. ...
EEEE 482 Lab0_Rev2015_1 - RIT
EEEE 482 Lab0_Rev2015_1 - RIT

... 1. Assume Beta is 150, VBE is 0.7 V and IC for the 2N3904 npn Transistor is 6.0mA, RL=10K ohms. 2. Pick the supply voltage, VCC, and the desired voltage gain Av 3. Set RC to meet the output voltage swing specification (remember to consider both VCC supply and transistor saturation). 4. Choose 0.15*V ...
Resistance - XAMK Moodle
Resistance - XAMK Moodle

... Negative feedback is created to an OpAmp circuit by connecting a resistor (or sometimes a capacitor) between the output and the inverting input (-). The negative feedback can be used to set the gain of an OpAmp circuit to the wanted level (see the circuits and gain formulas on the next slides). The ...
Experiment 1-2
Experiment 1-2

... The frequency response of a circuit containing reactive elements (inductors and capacitors) illustrates the importance of relative phase in the electrical behavior of multi-component circuits. The net current or voltage is the sum of the magnitudes and phases developed by the individual components. ...
Exp # (1) Introduction to OrCAD    Objectives: • To Be familiar with the
Exp # (1) Introduction to OrCAD Objectives: • To Be familiar with the

In a series circuit
In a series circuit

... • Name 2 things that can affect braking distance when stopping a car • What 2 things does your momentum depend on? ...
16.3 and 16.4
16.3 and 16.4

Current Sense Circuit Collection
Current Sense Circuit Collection

Theory
Theory

... 6) Now adjust the sweep speed on the oscilloscope (also the horizontal. magnification, if necessary) until only the first half of the trace shown in Figure 2 fills the screen. The horizontal adjustments, except for calibration, can be changed at will; however, do not change the vertical settings. 7 ...
34-1
34-1

... 8. What is the voltage across a 100-ohm circuit element that draws a current of 1 A? 100 V 9. What voltage will produce 3 A through a 15-ohm resistor? 45 V 10. The current in an incandescent lamp is 0.5 A when connected to a 120-V circuit, and 0.2 A when connected to a 10-V source. Does the resistan ...
Project Three – BJT Amplifier
Project Three – BJT Amplifier

... base of the BJT circuit with a bypass capacitor (C1) set at a value of 10µF. In addition, the emitter is connected to ground through another 10μF bypass capacitor (C2). Because of the large capacitance of these two capacitors, they can be assumed as open when performing DC analysis and shorted when ...
Lab 07: Ohm`s Law
Lab 07: Ohm`s Law

Phys Sc 430 Pretest 3.3 with solutions 1. Find the total resistance for
Phys Sc 430 Pretest 3.3 with solutions 1. Find the total resistance for

Current Electricity
Current Electricity

< 1 ... 849 850 851 852 853 854 855 856 857 ... 984 >

Current mirror

A current mirror is a circuit designed to copy a current through one active device by controlling the current in another active device of a circuit, keeping the output current constant regardless of loading. The current being 'copied' can be, and sometimes is, a varying signal current. Conceptually, an ideal current mirror is simply an ideal inverting current amplifier that reverses the current direction as well or it is a current-controlled current source (CCCS). The current mirror is used to provide bias currents and active loads to circuits. It can also be used to model a more realistic current source (since ideal current sources don't exist).The circuit topology covered here is one that appears in many monolithic ICs. It is a Widlar mirror without an emitter degeneration resistor in the follower (output) transistor. This topology can only be done in an IC as the matching has to be extremely close and cannot be achieved with discretes.Another topology is the Wilson mirror. The Wilson mirror solves the Early effect voltage problem in his design.
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