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Current Electricity - Red Hook Central Schools
Current Electricity - Red Hook Central Schools

Lab11
Lab11

... which is constantly, and periodically changing amplitude and direction. The time necessary for the current to undergo one complete change of amplitude and direction is called a cycle. The number of cycles which occur in one second is called the frequency, which is measured in Hertz (cycles per secon ...
L05016Ci LED Driver 20W, 3-43 Vdc, 1x 110-500 mA
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... At 300 K, the intrinsic carrier concentration of silicon is 1·5 × 10 16 m "3 . If the electron and hole mobilities are 0·13 and 0·05 m2 V "1s"1 , calculate the intrinsic resistivity of ...
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... offers reliability and compatibility with most types of low power LED sources, providing three hour duration emergency lighting at full output. The range is available in a wide range of LED voltage outputs and varying battery sizes, to suit the developing LED market. The LCV has extra circuitry so t ...


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... In order for an electronic circuit to function a current must flow through the circuit. A current is the measure of the rate of change of charge flowing past a certain point in the circuit. Current is measured by an ammeter placed in series with the circuit, which then displays the result in Amperes ...
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LH0004 LH0004C High Voltage Operational
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... and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’s te ...
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... energy management software to supervise and control (via Web server) the electrical parameters measured by LOVATO Electric devices with a communication port. In addition to providing datalogs and simple, user-configured Web pages, it can also be used to: • Configure alarms (for sending by email) • M ...
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... condition for the device that assumes ideal voltage conditions without current deficiencies. VDD and VDDQ often share the same power plane in the board, which can result in level shifts on VDD. This condition is caused by DDR2 high frequency I/O switching (VDDQ) which consumes a large amount of curr ...
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... sometimes get when I touch a doorknob after walking across the carpet at work). Sometimes this problem is called electrical overstress (EOS) since most ESD-related failures are caused not by gate-oxide breakdown, but by the thermal stress (melting) that occurs when the n -channel transistor in an ou ...
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... During the winter, many people use portable electric space heaters to keep warm. Sometimes, however, the heater must be located far from a 120-V wall receptacle, so an extension cord must be used. However, manufacturers often warn against using an extension cord. If one must be used, they recommend ...
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KSA114 2 PNP Epitaxial Silicon Transistor Absolute Maximum Ratings

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Surge protector



A surge protector (or surge suppressor) is an appliance/device designed to protect electrical devices from voltage spikes. A surge protector attempts to limit the voltage supplied to an electric device by either blocking or by shorting to ground any unwanted voltages above a safe threshold. This article primarily discusses specifications and components relevant to the type of protector that diverts (shorts) a voltage spike to ground; however, there is some coverage of other methods.The terms surge protection device (SPD), or transient voltage surge suppressor (TVSS), are used to describe electrical devices typically installed in power distribution panels, process control systems, communications systems, and other heavy-duty industrial systems, for the purpose of protecting against electrical surges and spikes, including those caused by lightning. Scaled-down versions of these devices are sometimes installed in residential service entrance electrical panels, to protect equipment in a household from similar hazards.Many power strips have basic surge protection built in; these are typically clearly labeled as such. However, power strips that do not provide surge protection are sometimes erroneously referred to as ""surge protectors"".
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