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For small size, high frequency coils, the most common core material is- a. )Air b. )Ferrite c.) Powdered ion d.) Steel
11 23257. If we have a parallel plate capacitor of plate area 'A' and plate separatoin t and having a capacity C and a metallic plate r of area A and of negligible thickness is introduced in the capacitor at a distance from either of the two plates as shown in the given figure then the capacity of the capacitor will become a.) b.) C c.) 2C d.) 4C
3 8244. A superconductor is a a.) A material showing perfect conductivity and Meissner effect below a critical temperature b.) A conductor having zero resistance c.) A perfect conductor with highest di-magnetic susceptibility d.) A perfect conductor which becomes resistance when the current density through it exceeds a critical value
BSNL,
1 6604When an inductor tunes at 200 KHz with 624 pF capacitor and at 600 KHz with 60.4 pF capacitor then the self capacitance of the inductor would be a) 8.05 pF b) 10.05pF c.) 16.01pF d.) 20.01pF
3 11061Sparking occur when a load is switched off because the circuit has high a.) Inductance b.) Capacitance c.) Resistance d.) None
14 44646Sparking between contacts can be reduced by inserting a a.) Resistance in the line b.) Capacitor in series with contacts c.) Capacitor in parallel with contacts d.) None
4 16919RF amplifier of an A.M. receiver is normally biased in a.) Class 'A' b.) Class 'b' c.) Class 'C' d.) None
BSNL,
5 17910pls tell me the syllabus and books that suitable for the post of junior and section engineer cateogries.
1 4286i am also applied for the AAI jr executive (electronics/ATC) written test. pls forward me the syllabus & test pattern if any question papers, any one got reply for this quaries? if any one know plz reply to me on my email shivani_19jan@yahoo.co.in
3 8102Post New Electronics Communications Questions
What are the two types of control strategies?
define flyback converter.
What precautions are required to be observed in the use of leds?
write a c programme for add of two numbers with out use of arthematic operators
why length of antenna is taken as one half of wavelength or one fourth of wavelength? Why not one eighth or one sixteenth?
Which is the pin no of CN1 TERMINAL and the parameter using in delta servo drive for auto/man input and start forward input
i m selected in AAI JE. my interview is on 25 sept. 2010. i don't hv any idea abt aai interview. can anyone help me, i want to know interview qus of aai. so pls help me... my e-mail id -- mailmanish_kumar@yahoo.co.in
At what voltage does land line telephone operate?
Why is schottky diode called hot-carrier diode?
What is meant by phase controlled rectifier?
What is the difference between masking and non-masking?
I have Completed my diploma in Electronics in year 2009.I got low score in TOEFL.SO what should i do to get the visa...I am confident that I will get the visa..But probable chances for getting visa....and i also got I20 and paid Visa interview fees.....
What is faithful amplification?
is there any job for electronic engineering
what is the specialty of nand and nor gates?
