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CBSE Questions

Total Questions 9982
what is meant by the internal and external frontiers of the sultanate?
what is choromotography
how many prime numbers are there between 1 and 100 ? what are they
what is line spacing
who create enternet
what is periscope
what is convex mirror
what is quardilateral
what is polygons
what is line segment
what is ray
what is called a manuscript
"Acid rain"is a type of pollution that occurs when oxides of two elements combine with the moisture present in the atmosphere. The oxides of these two elements are released by burning of fossil fuels ,such as coal,petroleum,and natural gas .Which are these 2 elements?
why Fe(oh)3 easily coagulated by Na3Po4?
what is ch4 hybridisation?
What is IUPAC? What are its functions?
WHY IS THE MAGNITUDE OFMAGNETIC FIELD OUTSIDE A SOLENOID TAKEN AS 0?
42) Two resistors of resistance 2? and 4? are connect i) in series and ii) parallel to a given battery for same interval.Compute the ratio of the total quantity of heat produced in the combination in the 2 to cases.
43) Two resistors with resistance 10? and 15? are to be connected to a battery of e.m.f 5v as to obtained i) maximum current ii) minimum current a) how will you connect the resistance in each case ? b) Calculate the strength of total current in the circuit in the 2 cases
41) You are given two fuse wire A and B with current rating 2A and 5A respectively .Which of the two wires would you select for use with a 1000W, 220 V room heater ? justify your answer .