how can we derive power factor equation p=vi cos phi? derivation?

2 Answers  

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What is the difference between cfm (cubic feet per minute) and scfm (standard cubic feet per minute)?

0 Answers  

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How many days we are store our cement bags?

4 Answers  

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Are there any special considerations to be taken into account for combusting ammonia?

0 Answers  

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why we messure differential pressure in pascle,mmhg,mmwc like different units in different companys?

1 Answers  

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What is higher heating value and lower heating value? Is it positive or negative?

0 Answers  

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The power required for size reduction in crushing is???

5 Answers  

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How can I remove/decrease TDS from sewage waste water? At the moment it is 900gm/l. What is recommended TDS level to dispose sewage water in sea?

2 Answers   OGDCL,

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What is difference between a Flue Gas Analyzer and Exhaust Gas Analyzer ?

1 Answers  

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Question 47 - In a cylinder with a hollow, let a is outside radius and b is the inside radius. In a steady state temperature distribution with no heat generation, the differential equation is (d / dr) (r dT / dr) = 0 where r is for radius and T is for temperature. (a) Integrate the heat equation above into T(r) in term of r. (b) At r = a, T = c; at r = b, T = d. Find the heat equation of T(r) in term of r, a, b, c, d.

1 Answers  

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What are the effects of oils on the properties of Polyolefins?

0 Answers   IOCL,

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What are the most common problems encountered in a valve or bubble cap distillation column?

3 Answers   Eastman Chemical,

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