Related Questions

Determine the resistance value and tolerance of a resistor that has the following color bands; first band is red, second band is red, third band is orange, and the fourth band is gold
A 220 Ohm, 5%
B 220 Ohm, 10%
C 22,000 Ohm, 5%
D 22, 000 Ohm, 10%
E None of the above
In a mixer, the quantity, (v. L/D) is termed as __________ number(where, v = longitudinal velocity of material, L = length of the mixer, D = diffusivity in axial mixing).
A Weber
B Peclet
C Brinkman
D Schmidt
In a radio receiver, we generally use ___________ oscillator as a local oscillator
A Crystal
B Wien-bridge
C Phase-shift
D Hartley
The bandwidth of C-band satellite frequency band in U.S.
A 500 GHz
B 1000 GHz
C 1000 MHz
D 500 MHz
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
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
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
A band-pass filter rejects all frequencies within a band between a lower and an upper critical frequency and passes all others.
A True
B False
The frequency of Ku band for satellite communications.
A 4 - 8 GHz
B 12 - 18 GHz
C 8 - 12 GHz
D 26 - 40 GHz
Which of the following is used as an oscillator device in the SHF band?
A Thyratron tube
B Tunnel diode
C Klystron tube
D Both B and C

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