For small size, high frequency coils, the most common core material is- a. )Air b. )Ferrite c.) Powdered ion d.) Steel11 15221
. 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.) 4C3 5443
. 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
When 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.) 20.01pF3 6552
Sparking occur when a load is switched off because the circuit has high a.) Inductance b.) Capacitance c.) Resistance d.) None14 33252
Sparking 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.) None4 12327
RF amplifier of an A.M. receiver is normally biased in a.) Class 'A' b.) Class 'b' c.) Class 'C' d.) None
pls tell me the syllabus and books that suitable for the post of junior and section engineer cateogries.1 2444
what is Programmable logic controller?what is its importance and where itis used????3 4391
What is true for frame relay?2 2636
i 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 email@example.com 5269
what is the need for modulation?13 14778
what is hetrodyning?2 5154
What is integrating type converter
Can we use ic 741 for high frequency applications?
Define power electronics?
What are the two types of cyclo-converters?
what is the effect of increase resistance on reluctance?
What is space charge width?
What is a transistor? What are its applications?
What is zigbee?
why the signals of wireless in db value
Which was intel's first microprocessor
Differentiate between transducer and transponder.
i want BHEL electronics and communication placement papers.
Explain how many states does signal has?
Tell me why gold is added to the p-n junction?
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