Related Questions

In an LC oscillator, the frequency of oscillator is ___________ L or C.
A Proportional to square of
B Directly proportional to
C Independent of the values of
D Inversely proportional to square root of
In a radio receiver, we generally use ___________ oscillator as a local oscillator
A Crystal
B Wien-bridge
C Phase-shift
D Hartley
একটি সরল দোলকের সুতার দৈর্ঘ্য 99 cm এবং এর দোলনকাল 2 sec হলে দোলক পিন্ডের ব্যাসার্ধ নির্ণয় কর। (The length of the string and period of oscillation of a simple oscillator are 99 cm and 2 sec, respectively. Find the radius of the oscillator.)
A 1.29 cm
B 7 mm
C 3.18 mm
D 0.28 cm
E 2.15 mm
If the arrow of crystal diode symbol is positive w.r.t. bar, then diode is ___________ biased.
A forward
B reverse
C either forward or reverse
D none of the above
Another name for Zener diode is ___________ diode
A Breakdown
B Voltage
C Power
D Current
The PIV rating of a crystal diode is ___________ that of equivalent vacuum diode
A the same as
B lower than
C more than
D none of the above
The doping level in a zener diode is ___________ that of a crystal diode
A the same as
B less than
C more than
D none of the above
সরল ছন্দিত স্পন্দন ( simple harmonic oscillator)- এর ক্ষেত্রে কোনটি সঠিক সমীকরণ?
A     d2xdy2+w2x=0 
B     d2xdy2+w2y=0
C d2xdt2+w2t=0 
D    d2xdt2+ ϖ2x=0
The controlled oscillator synthesizer is sometimes preferred over the direct one because
A It is a simpler piece of equipment
B Its frequency stability is better
C It does not require crystal oscillator
D It is relatively free of spurious frequency
The local oscillator of a broadcast receiver is tuned to a frequency higher than the incoming frequency
A To help the image frequency rejection
B To permit easier tracking
C Because otherwise an intermediate frequency could not be produced
D To allow adequate frequency coverage without switching

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