For small size, high frequency coils, the most common core material is- a. )Air b. )Ferrite c.) Powdered ion d.) Steel
11 23207. 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 8230. 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
1 6589When 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 11044Sparking occur when a load is switched off because the circuit has high a.) Inductance b.) Capacitance c.) Resistance d.) None
14 44587Sparking 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 16895RF amplifier of an A.M. receiver is normally biased in a.) Class 'A' b.) Class 'b' c.) Class 'C' d.) None
5 179021.two coupled coils with L1=L2=0.6 H have a coupling coefficient of k=0.8 the turns ratio N1/N2 is......
5 32590Post New BSNL Interview Questions
How many areas for files does datastage have?
What is sensormanager?
What are the Strings available in Kotlin ?
what is mage registry? How we register a variable?
What are the unique benefits of getting data into a splunk instance via forwarders?
What are the different database elements of cassandra?
What are intracellular pathogens?
Explain how do you directly call a native function exported from a dll?
How many types of resources available in wpf?
What is messagetype in biztalk server? : biztalk server
Which method is executed if space is passed for the method parameter of macro swc_call_method ?
How can you prevent your web services from unauthorized access?
What is the use of html() method in jquery?
How many requests can tomcat handle?
Explain what are the various reporting tools in the market?