प्राकृतिक सम्पदा - L3 | मृदा प्रदूषण | कक्षा 9 NCERT विज्ञान | Chapter 14 | Pooja Ma'am

C 3 F 6 : I9L12 : : K 11 N 14 : ?

If 13 L 4 A 7 = 41 and 14 A 3L 12 = 54 , then 12 L 3 A9 = ?

A p-n-p transistor is used as common base amplifier as V_(eb) =3V . When its emitter current changes from 13.4 mA to 20.14 mA its collector current changes from 13.4 mA to 19.9 mA. Its current gain will be

A magnetised steel wire of length L has a magnetic moment of 3.14 Am^(2) . If the wire is bent into a semicircular arc, then what would be its new magnetic moment? (assume that the poles are situated at the ends of the wire.)

A magnetised steel wire of length L has a magnetic moment of 3.14 Am^(2) . If the wire is bent into a semicircular arc, then what would be its new magnetic moment? (assume that the poles are situated at the ends of the wire.)

14th term of an 0.6, 1.7, 2.8, 3.9 , …… is :

A piece of ancient wood shows an activity of 3.9 disintergration per sec. per gram of .^(14)C . Calculate the age of the wood. T_(1//2) of .^(14) C=5570 years. Activity of fresh .^(14)C=15.6 disinteration per second per gram.