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Multimeters - WFU Physics Home
Multimeters - WFU Physics Home

... Figure 3: The left is the circuit diagram for the circuit. Figure 1: Physical Circuit from a Wiring Diagram for Exercise 1a. The right shows how this is interpreted for actual wiring of the components in the lab. ...
current+electricity+IV - PTEC107 AC/DC Electronics/Electrical
current+electricity+IV - PTEC107 AC/DC Electronics/Electrical

... circuits.  Simplify those circuits.  Calculate the current and/or voltage of each part of a circuit. ...
worksheet - cloudfront.net
worksheet - cloudfront.net

... 4.) Three identical resistors, each with resistance R, and a capacitor of 1.0 x 10-9 F are connected to a 30 V battery with negligible internal resistance, as shown in the circuit diagram above. Switches S I and S2 are initially closed, and switch S3 is initially open. A voltmeter is connected as sh ...
Watch Out for Those Thermoelectric Voltages!
Watch Out for Those Thermoelectric Voltages!

... measuring circuit at junctions between conductors made of dissimilar materials. The magnitude of a thermal EMF generated by a material junction depends on the thermoelectric coefficient of the two materials. For example, when connecting test leads to a voltmeter, at the point where the leads connect ...
What are conductors and insulators?
What are conductors and insulators?

... them. Conductors are materials that can carry electricity - they conduct electricity. Metal materials such as copper, iron, steel and aluminum are all good conductors of electricity. Insulators do not allow electricity to flow through them. Materials such as wood, plastic, rubber and glass do not ca ...
CSPEMI201A 数据资料DataSheet下载
CSPEMI201A 数据资料DataSheet下载

... are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor doe ...
Chap 23 PPT notes chap_23
Chap 23 PPT notes chap_23

... • Think about and explain how a flashlight is set up. ...
Current in series circuits
Current in series circuits

... Electricity is the flow of electrons. If a material is going to CONDUCT electricity , it must have electrons of its own that will be free to move between the atoms (that make it up).Metals are such materials. CONDUCTORS and NON-CONDUCTORS Solid conductors, such as metals have free electrons. So does ...
DENTRON CLIPPERTON-L REPLACEMENT POWER SUPPLY
DENTRON CLIPPERTON-L REPLACEMENT POWER SUPPLY

... Unsolder or clip (flush) and label the following wires from the top of the old PC board: 1. The small wire (usually GRAY) from the meter function switch to the B- side of a 0.05Ω resistor mounted on the top or bottom of the old PC board (depending on your model amplifier). Label this wire B-. 2. The ...
The 208 ToolBox buildnotes for batch3 Assembly Some resistors
The 208 ToolBox buildnotes for batch3 Assembly Some resistors

... The "LED" resistors value depends on the LED type, with some 220 ohms is enough while others will still make you blind even with 3k. The "(100nF)" cap is needed in case the EG pulse input doesn't work with the pulse of the 218 despite it works with other pulses. If the 218 well trigs the envelope vi ...
Hey all you MMR fans – back again we are for more
Hey all you MMR fans – back again we are for more

Physical Design
Physical Design

dsp upgrade for yaesu ft-897d - bhi DSP Noise Cancellation Products
dsp upgrade for yaesu ft-897d - bhi DSP Noise Cancellation Products

Passive-Optical Person Detector
Passive-Optical Person Detector

... will therefore even work in a darkened room. Gradual changes in illumination are ignored, while rapid changes are greeted with an acoustic alarm. However, direct sunlight is not good for the sensitivity of the circuit: it is better to use indirect lighting, reflected from other objects in the enviro ...
PN 85150 SitePlayer Web Controller Kit Version 1.5
PN 85150 SitePlayer Web Controller Kit Version 1.5

AN-1973 Benefits and Challenges of High
AN-1973 Benefits and Challenges of High

... the EMI can increase fourfold. This can be mitigated by paying close attention to the printed circuit board layout and component selection. When designing a printed circuit board for high switching frequencies it is critical to follow these rules. First, identify the high di/dt loop paths and minimi ...
RF3396 GENERAL PURPOSE AMPLIFIER Features
RF3396 GENERAL PURPOSE AMPLIFIER Features

... Exceeding any one or a combination of the Absolute Maximum Rating conditions may cause permanent damage to the device. Extended application of Absolute Maximum Rating conditions to the device may reduce device reliability. Specified typical performance or functional operation of the device under Abs ...
INSULATING MATERIALS
INSULATING MATERIALS

... POLYESTER (MYLAR): A strong material often used in film sheets and tapes for graphic arts and electronics. Those shiny balloons and "space blankets" are usually made from metalized Mylar. Mylar is also used as a dielectric in capacitors. POLYOLEFINS: Polyethylene is the white Teflon-like material us ...
Series cirucits
Series cirucits

... Circuit building supplies (wires, multiple resistors, at least 1 voltmeter and ammeter per group) Note: Although multiple meters are shown, students are verbally directed before the lab to move the meter from location to location Note: Be sure the wires that you use have small enough resistance so t ...
activity8-old
activity8-old

... circuit. "Supply Bypass Capacitors" help us in this regard. A capacitor has a high impedance to dc and a low impedance to voltage fluctuations. Putting a large (eg. 0.1F) capacitor between the +5V and ground pins of your chips effectively short circuits the fluctuations without affecting the stead ...
LHC_IR_quads_Heaters
LHC_IR_quads_Heaters

EZ-USB FX2 (TM) PCB Design Recommendations
EZ-USB FX2 (TM) PCB Design Recommendations

... The CY7C68013 requires an external 24-MHz crystal. The component includes circuitry to step up that frequency to support the 480-MHz bit rate of high-speed USB signaling. Solid ground planes and short connections help keep emissions low. Common mode chokes on the USB data pair reduce emissions at th ...
Syllabus - Jongwon Lee
Syllabus - Jongwon Lee

... Honor Code Statement: You are expected to do homework and exams by yourself, and any plagiarism is strictly prohibited and will be appropriately punished. When preparing homework you are allowed to discuss with other peer students, but all material submitted must be original. Notes on exam grading: ...
chemicals - Mouser Electronics
chemicals - Mouser Electronics

... properties. Usable over a wide range of temperatures. Its consistency is vaseline-like and it is white opaque in color. It provides an excellent dielectric coating which excludes moisture and prevents high voltage arcing. Applicable to components in the high voltage section of TV receivers. Protects ...
chapter 4
chapter 4

... The American organisation JEDEC (Joint Electronic Device Engineering Council) has recommended standard dimensions for many components. Standardisation is extremely important. ...
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Printed circuit board



A printed circuit board (PCB) mechanically supports and electrically connects electronic components using conductive tracks, pads and other features etched from copper sheets laminated onto a non-conductive substrate. PCBs can be single sided (one copper layer), double sided (two copper layers) or multi-layer (outer and inner layers). Multi-layer PCBs allow for much higher component density. Conductors on different layers are connected with plated-through holes called vias. Advanced PCBs may contain components - capacitors, resistors or active devices - embedded in the substrate.FR-4 glass epoxy is the primary insulating substrate upon which the vast majority of rigid PCBs are produced. A thin layer of copper foil is laminated to one or both sides of an FR-4 panel. Circuitry interconnections are etched into copper layers to produce printed circuit boards. Complex circuits are produced in multiple layers. Printed circuit boards are used in all but the simplest electronic products. Alternatives to PCBs include wire wrap and point-to-point construction. PCBs require the additional design effort to lay out the circuit, but manufacturing and assembly can be automated. Manufacturing circuits with PCBs is cheaper and faster than with other wiring methods as components are mounted and wired with one single part. Furthermore, operator wiring errors are eliminated.When the board has only copper connections and no embedded components, it is more correctly called a printed wiring board (PWB) or etched wiring board. Although more accurate, the term printed wiring board has fallen into disuse. A PCB populated with electronic components is called a printed circuit assembly (PCA), printed circuit board assembly or PCB assembly (PCBA). The IPC preferred term for assembled boards is circuit card assembly (CCA), and for assembled backplanes it is backplane assemblies. The term PCB is used informally both for bare and assembled boards.The world market for bare PCBs reached nearly $60 billion in 2012.
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