Related Questions

In an LC oscillator, the frequency of oscillator is ___________ L or C.
ক Proportional to square of
খ Directly proportional to
গ Independent of the values of
ঘ Inversely proportional to square root of
In a radio receiver, we generally use ___________ oscillator as a local oscillator
ক Crystal
খ Wien-bridge
গ Phase-shift
ঘ 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.)
ক 1.29 cm
খ 7 mm
গ 3.18 mm
ঘ 0.28 cm
ঙ 2.15 mm
In a transmitter ___________ oscillator is used
ক Hartley
খ RC phase-shift
গ Wien-bridge
ঘ Crystal
Hartley oscillator is commonly used in ___________
ক Radio receivers
খ Radio transmitters
গ TV receivers
ঘ None of the above
An LC oscillator cannot be used to produce ___________ frequencies
ক High
খ Audio
গ Very low
ঘ Very high
The signal generator generally used in the laboratories is ___________ oscillator
ক Wien-bridge
খ Hartely
গ Crystal
ঘ Phase shift
Which of the following is used as an oscillator device in the SHF band?
ক Thyratron tube
খ Tunnel diode
গ Klystron tube
ঘ Both B and C
Which of the following is used as a high power microwave oscillator?
ক Thyratron
খ Magnetron
গ Klystron
ঘ Reflex-klystron
The highest frequency which a conventional vacuum tube oscillator can generate is not limited by the
ক Electron transit time
খ Distributed lead inductance
গ Inter-electrode capacitance
ঘ Degree of emission from the cathode

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