why we not connect the 12 V batteries in parallel to get the more backup supply ? how to calculate the input wattage and output wattage of an UPS ?

1 Answers  

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Explain how zener diode maintains constant voltage across the load?

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why ammeter always connect in series for measuring the current?

8 Answers  

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Which is the pin no of CN1 TERMINAL and the parameter using in delta servo drive for auto/man input and start forward input

0 Answers   Delta,

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What are the charge carriers in p-type and n-type semiconductors?

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can any one help me out by posting something related to rvnl interview for site engineer electronics (S & T).? what is the procedure? what type of question they generally ask? how long the interview goes for one candidate? and any tips ??

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What is the difference between drift current and diffusion current?

3 Answers  

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How can increase strength of EMF in AC motor?

0 Answers   TCS,

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What are the different types of flip-flops?

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can u provide interview questions of AIRPORT AUTHORITY OF INDIA AIR TRAFFIC CONTROL??

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what is the present model of group1 and group 2 syllabus plz send the link ?

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How output frequency is varied in case of a thyristor?

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