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A coil of resistance 1.5k Ω and 0.25H inductance is connected in parallel with a variable capacitance across a 10V, 8kHz supply.
Calculate (a) the capacitance of the capacitor when the supply current is a minimum,
(b) the dynamic resistance, and
(c) the supply current.
Ferrites are (A) Ferromagnetic material. (B) Ferrimagnetic materials. (C) Anti ferromagnetic material. (D) Diamagnetic materials. Ans: Ferrites are ferro
Starting from Maxwell's electromagnetic equations in vacuum, get the wave equations for the four fields vectors E, D, B and H.
if length changes then there is change in the time period how to solve these questions regards
A spring is held vertically downward and a current is passed through it . Then the length of the spring : A . increases B. decreases C . does not change D the spring osc
What do you mean by transformer ratio? A current of 2A is passed through a coil of 1000 turns to produce a flux of 0.5µwb. Determine the self inductance of the coil.
Q. Why does a glass filled with water smash when you run your finger along the rim of the glass? Answer:- A portion of crystal stemware has a natural or resonant frequency
what is the use of the muslin bag in a dry cell
what are the shapes of inorganic molecules?
Gold: Atomic number 79 Symbol Au Atomic weight 196.9665 discov
what is anti reflection coating ?
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