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Q. Collector current I c =20 mA and base current I b = 50 A. Find current gain β of a transistor. β = I C / I B = 20 X 10 -3 / 50 X 10 -6 = 400
Q. Tritium has a half life period of 12.5 years. What fraction of the sample will be left over after 25 years? HLP = 12.5 years Number of HLPs in 25 years = 25 / 12.5 =2
How theta between plane of the coil and magnetic field remains constant
Q. State Kirchoff's second law in electricity? Kirchoff's second law (voltage law) the algebraic total of the products of resistance as well as current in each part of any
What is the type of bonding in silicon? (A) Ionic. (B) Covalent. (C) Metallic. (D) Ionic + Metallic Ans: Bonding in silicon is covalent type.
State the principle of working of p-n diode as a rectifier. Describe, with the help of a circuit diagram, the use of p-n diode as a full wave rectifier. Illustrate a sketch of the
what is dielectric polarisation
What do you understand by "Absorption coefficient"? which is a better absorber of sound, glass or fibre glass?
Digital multimeters: Digital multimeters offer a number of significant advantages when compared with their more humble analogue counterparts. The display fitted to a digital m
what is light
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