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What does AC and DC stand for in the electrical field?

well, AC refers to the form in which electricity is delivered to businesses and residences. However, audio and radio signals carried on electrical wires are also examples of alternating current. In these applications, an important goal is often the recovery of information encoded or modulated onto the AC signal.Direct current DC or "continuous current" is the unidirectional flow of electric charge

Posted in Computers & Technology by Aryan Gusain at 5:58 PM on July 01, 2008

Is there any function or formula to find out if there are zero records in a crystal report?

. How do I do an average on this one column? Will it need to be a variable for that column? Heres what I have currently.This is in the string display of the grid cell:select GridRowColumnValue "Operation.shortname1"cas e 2,3,23,24,25,26,30,35,36,37,50 ,51:cstr CurrentFieldValuecase 27:effrate = effrate cstrCurrentFieldValue;cstr CurrentFieldValue & ""default:leftcstrCu rrent

Posted in Computers & Technology by himali at 12:04 AM on May 28, 2008

What happens when DC supply is connected to AC "TRIAC"?Complete process.

TRIAC are used only for alternate current, the direct current can only vary continuously, since the inductance prevents any abrupt changes in the current. The direct current is equal to zero at the firing point, but the...n increases continuously to a maximum and drops to zero. Different resistance and inductance values have different time profile of the current because of having different time

Posted in Computers & Technology by vikas tomar at 7:57 PM on July 26, 2008

Java is an object-oriented programming language. What is an object?

, color, breed, hungry and behavior barking, fetching, wagging tail. Bicycles also have state current gear, current pedal cadence, current speed and behavior changing gear, changing pedal cadence, applying, color, breed, hungry and behavior barking, fetching, wagging tail. Bicycles also have state current gear, current pedal cadence, current speed and behavior changing gear, changing pedal cadence, applying

Posted in Computers & Technology by rocky singh at 1:40 PM on June 26, 2008

Can anyone help me out in knowing all the keyboard shortcuts?

submenu. LEFT ARROW Open the next menu to the left, or close a submenu. F5 Refresh the active window. BACKSPACE View the folder one level up in My Computer or Windows Explorer. ESC Cancel the current task to the next child window of a Multiple Document Interface MDI programALTunderlined letter in menu: Opens the menuALTF4: Closes the current windowCTRLF4: Closes the current Multiple Document Interface MDI window

Posted in Computers & Technology by Chavali at 2:15 PM on July 28, 2008

what is the principle & working mechanism involved in producing current from an generator? for inc power suchas 2.5kv how much engine capacity needed?

energy. Generators can be subdivided into two major categories depending on whether the electric current produced is alternating current AC or direct current DC. The basic principle on which both types current created a magnetic field around it. French physicist Andr&233; Marie Amper&232; 17751836 then found that a coil of wire with current running through it behaved just like a magnet. In about 1831

Posted in Computers & Technology by sandeep at 7:43 AM on July 27, 2008

. Name the fastest logic family-a TTLb. RTLc. DCTLd. ECL

d ECL...well nawarj , In electronics, emitter-coupled logic, or ECL, is a logic family in which current is steered through bipolar transistors to implement logic functions. ECL is sometimes called current-mode logic[2...] or current-switch emitter-follower CSEF logic.[3...][4...]The chief characteristic of ECL is that the transistors are never in the saturation region and can thus change states at very

Posted in Computers & Technology by Nawraj at 9:35 PM on June 26, 2008

what current is there in lightiningclouds when strike produce current...is it a.c OR d.c current??

Its DC. Static charges build up in the cloud and on the ground, producing a large potential difference. This potential difference is then "resolved" via a spark, through which large numbers of electrons travel in one direction.

Posted in Others by manjot at 12:40 AM on May 09, 2008

AAP CURRENT GENRATION SE AGE HO?CURRENT GENRATION SE PICHU HO? KE CURRENT GENRATION KE SATH HO?

May kuch saal pahale current generation se piche tha. Kuch saal baada current generation se aage badunga. Aba my current generation me hu. ye may lik ke deta hu. Tum jab padoge hoyi hoga. Like Ganapathi ka marriage kal hoga...current generation ke sath hai

Posted in Trivia by sidhuvani at 3:50 AM on August 15, 2007

. When anode is positive with respect to cathode in an SCR, the numbers of blocked p-n junction is a. 1 b. 2 c. 3 d. 4

will be used to limit current through the device and R2 will be used to limit current to the gate. A 12 VDC supply of at least 200 mA capacity with a 100 ohm 2 W resistor for R1 and 1 K 1/4 W resistor for R2 should work for most small to medium power SCRs. Check the minimum gate current and holding current specs to be sure. For larger devices, R1 and/or R2 may need to be smaller....the numbers of blocked p

Posted in Computers & Technology by Nawraj at 9:33 PM on June 26, 2008

Why is a 24 gauge wire thinner than a 22 gauge wire?

lower number can usually carry a higher current. 14 gauge Romex cable usually has a 15 Amp breaker and a 12 gauge cable has a 20 Amp breaker. This assumes that the switches, outlets, etc. have the same current rating as the cable. Putting a 20 amp breaker on a 14 gauge circuit produces a potential fire hazard. As I am not a licensed electrician and codes and circumstances vary, this paragraph

Posted in Computers & Technology by Radhe Radhe at 3:53 PM on May 30, 2008

Why is Google displaying in another language when I didnt set any language preferences?

to view or modify your current language preferences.In Netscape Navigator 4.7, select "Preferences" from the "Edit" menu. Expand the "Navigator" heading, and click on the "Languages" subheading to view or modify your current language preferences.Please note: other websites with multi-lingual capability that support the accept-language header may also be affected by any modifications

Posted in Computers & Technology by Aryan Gusain at 7:48 PM on July 11, 2008

What is MESI?

: The cache line is present only in the current cache, and is dirty; it has been modified from the value in main memory. The cache is required to write the data back to main memory at some time in the future, before permitting any other read of the no longer valid main memory state. E - Exclusive: The cache line is present only in the current cache, but is clean; it matches main memory. S - Shared: Indicates

Posted in Computers & Technology by Nawraj at 11:22 PM on June 27, 2008
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What is DC

DC stands for Direct current is the constant flow of electric charge. This is typically in a conductor such as a wire, but can also be through semiconductors, insulators, or even through a vacuum as in electron or ion beams. In direct current, the electric charges flow in the same direction, distinguishing it from alternating current AC. A term formerly used for direct current was Galvanic current

Posted in Computers & Technology by Ram at 11:10 PM on October 24, 2007

how can i change my password?

" option.3 Write down / type your current password for confirmation.Than Write down your new password and Retype it again for confirmation.Click "Save " button to complete the process.You are through now....You should write where the field u want to change the password,Sign in with your username and current password.Click the "My Account" link in the upper right hand corner

Posted in Computers & Technology by syed quadri at 8:27 PM on July 16, 2008
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