# The crystal oscillator frequency is very stable due to

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The crystal oscillator frequency is very stable due to High Q of the crystal.

## Related questions

Frequency stability of crystal oscillator is due to its  A) Low Q B) Low loss C) High feed back D) High bandwidth

In a radio transmitter, the frequency of the crystal oscillator will be stable for a long time if the quality factor of the crystal resonator is  (a) > 100 (b) > 500 (c) > 1000 (d) > 20000

In a 741 Op-Amp, there is 20 dB/decade fall-off starting at a relatively low frequency. This is due to the (A) applied load (B) internal compensation (C) impedance of the source (D) power dissipation in the chip

The frequency stability of the oscillator output is maximum in _____.   (a) Crystal oscillator (b) Phase shift oscillator (c) LC oscillator (d) Wien bridge oscillator

Feedback factor at the frequency of oscillation of a Wien bridge oscillator is:  (1) 3 (2) 1/3 (3) 1/29 (4) 3/29

In a digital voltmeter, the oscillator frequency is 400 kHz, the ramp voltage falls from 8V to 0V in 20 m sec. The number of pulses counted by the counter is (a) 800 (b) 2000 (c) 4000 (d) 8000

In a transistor Colpitts oscillator, C1 = 0.001 µF, C2 = 0.01 µF and L = 5 µH. The frequency of oscillation in MHz will be (a) 2.37 MHz (b) 10.00 MHz (c) 11.54 MHz (d) 9.09 MHz

What is a crystal oscillator?

List the applications of RC oscillator and crystal oscillator.

Draw the circuit diagram of crystal oscillator and explain its working.

In a power transformer, the fundamental frequency of the hum arising due to magnetostriction is  (a) equal to the line frequency (b) double the line frequency (c) 4 times the line frequency (d) not related to the line frequency

On chip oscillator of 8051 has a nominal frequency (in MHz) of  A) 2 B) 8 C) 10 D) 12

The multivibrator circuit which processes one stable state and one quasi stable is   (a) Astabel (b) Monostable (c) Bistable (d) Schmitt trigger circuit

In which region is the operating point stable in tunnel diodes?  (1) Negative-resistance (2) Positive-resistance (3) Both negative- and positive-resistance (4) Neither negative- nor positive-resistance

At very high freqencies the type of diode used for rectification is  A) Abrupt junction B) Graded junction C) Point contact D) Tunnel

In communication systems, noise due to quantization error is a) Linear and signal dependent b) Non-linear and signal dependent c) Linear and signal independent at low frequencies only d) non -linear and signal dependent at low frequencies only

Assertion (A) : Wein bridge oscillator is generally used as a variable audio frequency oscillator Reason (R) : by using either capacitor (or) resistor in one of the arms of the bridge, the frequency of a wein bridge oscillator can be varied (A) Both (A) & (R) are true & (R) is correct explanation of (A) (B) Both (A) & (R) are true but (R) is not the correct explanation of (R). (C) (A) is true but (R) is false (D) (A) is false but (R) is true

As the wave frequency approaches to cut-off frequency of wave guide, the correct statement is : a. The phase velocity of waves tends to zero. b. The phase velocity of waves tends to velocity of light. c. The phase velocity of waves tends to infinite. d. None of these.

Which of the following is a negative-resistance microwave device for oscillator applications? A) IMPATT Diode B) Gunn Diode C) Snap diode D) Schottky Diode

The phenomenon of squirrel cage motors sometimes showing tendency to run at very low speed is known as (1) Cogging (2) Crawling (3) Damping (4) Skewing

List two types of oscillator, which generates frequency in RF range.

An oscillator that uses a tapped coil to obtain the feedback is called: a. A Hartley circuit b. A Pierce circuit c. A multivibrator d. A negative feedback circuit

Comparing to constant frequency PWM, variable frequency control is not preferred for chopper drives. Because  A) Wide range of frequency variation is required for the control of duty cycle B) Large off time make create the load current discontinuous C) Introduce wide spectrum of harmonics and possibility of interference with communication lines D) All the above

Two sinusoidal signals having the same amplitude and frequency are applied to the X and Y inputs of a CRO. The observed Lissajous figure is straight line. The phase shift between the two signals would be (1) Zero (2) 90 degrees (3) Either zero or 180 degrees (4) Either 90 degrees or 270 degrees

An accelerometer has input range of 0 to 10g, natural frequency 30 Hz and mass 0.001 kg. The range of the secondary displacement transducer in mm required to cover the input range is (A) 0 to 2.76 (B) 0 to 9.81 (C) 0 to 11.20 (D) 0 to 52.10

Positive feedback is used in 1. Amplifier 2. Rectifier 3.Oscillator 4. Detector

A Hartley Oscillator is used for generating (A) very low frequency Oscillation (B) radio-frequency Oscillation (C) microwave Oscillation (D) audio-frequency Oscillation

The basic Hartley oscillator uses: (1) One inductor and two capacitors (2) A centre tapped inductor and a capacitor (3) Two capacitors (4) Tickler coil

In a Hartley oscillator, L1 = 0.1 mH, L2 = 10 µH and mutual inductance between coils equals 20 µH. The voltage gain needed for sustained oscillations should be (a) 2.37 (b) 0.1 (c) 11.54 (d) 9.09

Which of the following devices cannot be used as microwave oscillator : a. IMPATT diode b. PN Junction .diode c. TRPATT diode d. BARRITT diode

The effect of phase error of local oscillator on spectral components in coherent detection of SSB Amplitude modulated signal is : a. The frequency of demodulated signals varies with fixed amplitude b. Amplitude of demodulated signals varies with fixed frequency c. Both amplitude & frequency vary d. The recovered signal has phase offset with fixed amplitude

Why are quartz crystal oscillators popularly used?  A) High Q and high frequency stability B) Low Q and high frequency stability C) Low Q and large output power D) High Q and large output power

Power transmitted through a pipe is maximum when the loss of head due to friction is : (A) one-half of the total head supplied (B) one-third of the total head supplied (C) one-fourth of the total head supplied (D) zero

The ratio of maximum displacement of the forced vibration to the deflection due to static force is known as : (A) Damping Factor (B) Damping Coefficient (C) Logarithmic Decrement (D) Magnification Factor

The operation of the relay which is most affected due to arc resistance is A) Mho relay B) Reactance relay C) Impedance relay D) All are equally affected

The negative sign in the expression e = – N (d∅)/dt is due to: (1) The Fleming’s Rule (2) Thumb’s Rule (3) Faraday’s Law (4) Lenz’s Law

In an AC transmission line difference in phase of voltage at two ends of the line is due to (a) System voltage (b) Insulators (c) Resistance of line (d) Reactance of line

The d.c. resistance of a conductor due to skin effect is (a) unchanged (b) decreased (c) increased (d) infinite